微信小程序 实现天气类功能

参考链接：
（1）全国城市天气预报_城市天气预报查询_国内天气预报查询_天气网
https://www.tianqi.com/chinacity.html
（2）获取实时天气数据-获取数据-开发指南-微信小程序SDK | 高德地图API
https://lbs.amap.com/api/wx/guide/get-data/weather
（3）免费、稳定的天气预报API
https://blog.csdn.net/weixin_40734511/article/details/82896985
（4）微信小程序实现天气预报功能(附源码)
https://www.jb51.net/article/201861.htm
（5）微信小程序实战之天气预报
https://blog.csdn.net/u014360817/article/details/52803527
（6）微信小程序项目实战之天气预报
https://www.cnblogs.com/demodashi/p/8481610.html
（7）微信小程序案例之天气预报
https://www.cnblogs.com/zh01/p/12119137.html

一、天气API

• 天气网 https://www.tianqi.com/chinacity.html
• 微信小程序SDK 高德地图API 实时天气数据 https://lbs.amap.com/api/wx/guide/get-data/weather
• 国家气象局 实时天气

1. http://www.weather.com.cn/data/sk/101190408.html
2. http://www.weather.com.cn/data/cityinfo/101190408.html
3. http://mobile.weather.com.cn/data/sk/101010100.html?_=1381891661455

• 国家气象局 一周天气预报接口
  http://mobile.weather.com.cn/data/forecast/101010100.html?_=1381891660081

//国家气象局
//格式说明 
var format={"fa":图片1,"fb"：图片2,"fc":温度1,fd：温度2,fe:风向1,ff：风向2,fg:风力1,fh：风力2,fi:日出日落}; 
//定义天气类型
var weatherArr={
    "10": "暴雨", 
    "11": "大暴雨", 
    "12": "特大暴雨", 
    "13": "阵雪", 
    "14": "小雪", 
    "15": "中雪", 
    "16": "大雪", 
    "17": "暴雪", 
    "18": "雾", 
    "19": "冻雨", 
    "20": "沙尘暴", 
    "21": "小到中雨", 
    "22": "中到大雨", 
    "23": "大到暴雨", 
    "24": "暴雨到大暴雨", 
    "25": "大暴雨到特大暴雨", 
    "26": "小到中雪", 
    "27": "中到大雪", 
    "28": "大到暴雪", 
    "29": "浮尘", 
    "30": "扬沙", 
    "31": "强沙尘暴", 
    "53": "霾", 
    "99": "", 
    "00": "晴", 
    "01": "多云", 
    "02": "阴", 
    "03": "阵雨", 
    "04": "雷阵雨", 
    "05": "雷阵雨伴有冰雹", 
    "06": "雨夹雪", 
    "07": "小雨", 
    "08": "中雨", 
    "09": "大雨"
}; 
//定义风向数组 
var fxArr={
    "0": "无持续风向", 
    "1": "东北风", 
    "2": "东风", 
    "3": "东南风", 
    "4": "南风", 
    "5": "西南风", 
    "6": "西风", 
    "7": "西北风", 
    "8": "北风", 
    "9": "旋转风"
};
//定义风力数组 
var flArr={
    "0": "微风", 
    "1": "3-4级", 
    "2": "4-5级", 
    "3": "5-6级", 
    "4": "6-7级", 
    "5": "7-8级", 
    "6": "8-9级", 
    "7": "9-10级", 
    "8": "10-11级", 
    "9": "11-12级"
};

• 中国天气 SmartWeatherAPI http://smart.weather.com.cn/wzfw/smart/weatherapi.shtml
• 和风天气 https://free-api.heweather.com/v5/forecast?city=yourcity&key=yourkey
• 心知天气（免费版只提供地级市数据） https://www.seniverse.com/doc

二、天气预报例子1

• 使用和风天气API

wxml文件

<view class="header">
 <view class="top">
 <view class="city">
  {{city}}
 </view>
 <view class="search">
  <input placeholder="输入城市名" bindinput="bindKeyInput" placeholder-style="color:white"></input>
  <view class="bt_search" bindtap="search">
  <icon type="search" size="18" color="white"></icon>
  </view>
 </view>
 </view>

 <view class="center">
 <view class="tmp">
  {{tmp}}°
 </view>
 <image mode="widthFix" class="cond-image" src="https://moyv.top/wechat/images/weather/{{imgsrc}}.png">
 </image>
 </view>
 <view class="bottom">
 <view>{{wind_dir}} {{wind_sc}}级</view>
 <view>湿度 {{hum}}%</view>
 <view>气压 {{pres}}Pa</view>
 </view>
</view>
<view class="container">
 <view class="hourly_title">24小时预报</view>
 <scroll-view scroll-x="true" class="hourly">
 <view class="h_item" wx:for="{{hourly}}" wx:key="index">
  <text class="h_time">{{item.time}}</text>
  <view class="h_img">
  <image mode="widthFix" src="https://moyv.top/wechat/images/weather/{{item.imgsrc}}.png"></image>
  </view>
  <text class="h_tmp">{{item.tmp}}°</text>
  <text class="h_wind_dir">{{item.wind_dir}}</text>
  <text class="h_wind_sc">{{item.wind_sc}}级</text>
 </view>

 </scroll-view>
 <view class="hourly_title">7天预报</view>
 <scroll-view scroll-x="true" class="daily">
 <view class="d_item" wx:for="{{daily_forecast}}" wx:key="index">
  <text class="d_txt">{{item.d_txt}}</text>
  <text class="d_date">{{item.d_date}}</text>
  <view class="h_img">
  <image mode="widthFix" src="https://moyv.top/wechat/images/weather/{{item.imgsrc_d}}.png"></image>
  </view>
  <text class="h_tmp">{{item.tmp_min}}°~{{item.tmp_max}}°</text>
  <view class="h_img">
  <image mode="widthFix" src="https://moyv.top/wechat/images/weather/{{item.imgsrc_n}}.png"></image>
  </view>
  <text class="d_wind_dir">{{item.wind_dir}}</text>
  <text class="d_wind_sc">{{item.wind_sc}}级</text>
 </view>

 </scroll-view>
</view>

<view class="footer">
-天气数据来自和风天气api-
</view>

wxss文件

page {
 background-color: #f6f6f6;
}

.header {
 background-color:#64c8fa; 
 /* background-image: linear-gradient(to right, #64a0f8, #64c8fa); */
 height: 450rpx;
 padding-top: 32rpx;
 text-align: center;
}

.top {
 display: flex;
 justify-content: space-between;
 align-content: center;
 align-items: center;
}

.city {
 text-align: center;
 color: white;
 display: inline-block;
 font-size: 52rpx;
 margin-left: 32rpx;
}

.search {
 margin-right: 32rpx;
 border-radius: 8rpx;
 display: inline-flex;
 justify-content: center;
 align-content: center;
 align-items: center;
 background-color: rgba(0, 0, 0, 0.1);
 height: 70rpx;
}

.search input {
 width: 200rpx;
 padding: 18rpx 32rpx;
 text-align: left;
 color: white;
 display: inline-block;
}

.bt_search {
 border-radius: 0 8rpx 8rpx 0;
 height: 100%;
 background-color: rgba(0, 0, 0, 0.1);
 display: inline-flex;
 justify-content: center;
 align-content: center;
 align-items: center;
}

.bt_search icon {
 margin: 8rpx 18rpx;
}

.center {
 display: flex;
 justify-content: space-between;
 align-content: center;
 align-items: center;
}

.tmp {
 margin-left: 18rpx;
 display: inline-block;
 font-size: 180rpx;
 color: white;
}
.cond-image{
 width: 200rpx;
 margin-right: 32rpx;
 margin-top: 32rpx;
}
.bottom{
 display: flex;
 justify-content: space-between;
 align-content: center;
 align-items: center;
}
.bottom view{
 color: white;
 margin: 32rpx;
}

.hourly_title{
 font-weight: bold;
 font-size: 42rpx;
 padding: 18rpx 32rpx;
}
.hourly {
 width: 718rpx;
 margin: 0 18rpx;
 border-radius: 18rpx;
 box-shadow: 0.1rem 0.1rem 0.5rem rgba(0, 0, 0, 0.15);
 white-space: nowrap;
 background-color: white;
}
.h_item {
 margin: 18rpx 0;
 display: inline-block;
 width: 143.5rpx;
 text-align: center;
 font-size: 28rpx;
}

.h_img {
 margin: 64rpx 0;
}

.h_img image {
 width: 60rpx;
}

.h_item text {
 display: block;
}

.h_time {
 color: gray;
}

.h_wind_dir {
 margin-top: 32rpx;
}

.h_wind_sc {
 color: gray;
}

.h_tmp {
 color: #027aff;
}

.daily {
 width: 718rpx;
 white-space: nowrap;
 margin: 0 18rpx;
 background-color: white;
 border-radius: 18rpx;
 box-shadow: 0.1rem 0.1rem 0.5rem rgba(0, 0, 0, 0.15);
}

.d_item {
 
 margin: 18rpx 0;
 display: inline-block;
 width: 179.5rpx;
 text-align: center;
 font-size: 28rpx;
}

.d_item text {
 display: block;
}

.d_date {
 color: gray;
}

.d_wind_dir {
 margin-top: 32rpx;
}

.d_wind_sc {
 color: gray;
}

.footer{
 font-size: 28rpx;
 color: gray;
 text-align: center;
 margin-top: 50rpx;
 margin-bottom: 18rpx;
}

js文件

Page({

 /**
 * 页面的初始数据
 */
 data: {
 search_city: '',
 imgsrc:100
 },
 /**
 * 根据城市获取天气预报
 */
 getWeather(city) {
 let that = this
 //获取实况天气
 wx.request({
  url: 'https://free-api.heweather.net/s6/weather/now?key=你后台的key&location=' + city,
  success: function(res) {
  if (res.data.HeWeather6[0].status == 'unknown location') {
   wx.showToast({
   title: '抱歉！没有该城市的天气预报',
   icon: 'none',
   duration: 2000
   })
   return;
  }
  console.log(res)
  that.setData({
   city: city,
   tmp: res.data.HeWeather6[0].now.tmp,
   imgsrc: res.data.HeWeather6[0].now.cond_code,
   wind_dir: res.data.HeWeather6[0].now.wind_dir,
   wind_sc: res.data.HeWeather6[0].now.wind_sc,
   hum: res.data.HeWeather6[0].now.hum,
   pres: res.data.HeWeather6[0].now.pres
  })

  //获取24小时天气预报
  wx.request({
   url: 'https://free-api.heweather.net/s6/weather/hourly?key=你后台的key&location=' + city,
   success: function(res) {
   var arr = res.data.HeWeather6[0].hourly
   var hourly = []
   for (var i = 0; i < arr.length; i++) {
    hourly[i] = {
    "imgsrc": arr[i].cond_code,
    "tmp": arr[i].tmp,
    "time": arr[i].time.substring(11),
    "wind_dir": arr[i].wind_dir,
    "wind_sc": arr[i].wind_sc
    }
   }
   that.setData({
    hourly: hourly
   })

   var weekArray = new Array("周日", "周一", "周二", "周三", "周四", "周五", "周六");
   //获取未来7天天气预报
   wx.request({
    url: 'https://free-api.heweather.net/s6/weather/forecast?key=你后台的key&location=' + city,
    success: function(result) {
    //console.log(result)
    var arr = result.data.HeWeather6[0].daily_forecast
    var daily_forecast = []
    for (var i = 0; i < arr.length; i++) {
     daily_forecast[i] = {
     d_txt: i == 0 ? "今天" : weekArray[new Date(arr[i].date).getDay()],
     d_date: arr[i].date.substring(5),
     imgsrc_d: arr[i].cond_code_d,
     imgsrc_n: arr[i].cond_code_n,
     wind_dir: arr[i].wind_dir,
     wind_sc: arr[i].wind_sc,
     tmp_max: arr[i].tmp_max,
     tmp_min: arr[i].tmp_min,
     cond_txt_d: arr[i].cond_txt_d
     }
    }
    that.setData({
     daily_forecast: daily_forecast
    })
    }
   })

   }
  })

  }
 })
 },
 bindKeyInput(e) {
 this.setData({
  search_city: e.detail.value
 })
 },
 search() {
 this.getWeather(this.data.search_city)
 },
 /**
 * 生命周期函数--监听页面加载
 */
 onLoad: function(options) {
 this.getWeather("广州")
 },
})

json文件

{
 "usingComponents": {},
 "navigationBarTitleText": "天气预报"
}

三、天气预报例子2

这个案例是仿UC中天气界面做的中间也有点出入，预留了显示当前城市名字和刷新图标的位置，自己可以写下，也可以添加搜索城市。值得注意的是100%这个设置好像已经不好使了，可以通过获取设备的高度通过数据绑定设置高度。地址 https://github.com/shuncaigao/Weather
wxml文件

<view class="newTopView">
<!--左边添加当前城市名字，点击跳转选择城市 右边添加刷新当前天气-->
</view>
 <view class="topView">
    <view class="degreeView">
    <!--当前温度-->
      <text class="degree">{{currentTemperature}}</text>
      <!--度数图标-->
      <image class="circle" src="../../image/circle.png"></image>
    </view>
    <view class="detailInfo">
      <view class="degreeView">
      <!--夜间天气情况-->
        <text class="detailInfoDegree">{{nightAirTemperature}}</text>
        <image class="detailInfoCircle" src="../../image/circle.png" />
        <text class="detailInfoLine">/</text>
        <!--白天天气-->
        <text class="detailInfoDegree">{{dayAirTemperature}}</text>
        <!-- style优先级比class高会覆盖class中相同属性 -->
        <image class="detailInfoCircle" style="margin-left: 57rpx; margin-right: 40rpx" src="../../image/circle.png" />
        <!-- 当前天气名字 -->
        <text class="detailInfoName">{{weather}}</text>
      </view>
    </view>
  </view>
  <!-- 中间部分 -->
  <view class="centerView">
    <view class="centerItem" style="margin-right: 25rpx;">
      <image class="centerItemImage" src="../../image/leaf.png" />
      <!-- 相同属性抽出来！ -->
      <!--污染指数-->
      <text class="centerItemText" style="margin-left: 10rpx; margin-right: 10rpx">{{aqi}}</text>
      <!--污染指数对应name-->
      <text class="centerItemText">{{quality}}</text>
    </view>
    <view class="centerItem" style="margin-left: 25rpx">
      <image class="centerItemImage" src="../../image/wind.png" />
      <text class="centerItemText" style="margin-left: 10rpx; margin-right: 10rpx">{{windPower}}</text>
      <!--风-->
      <text class="centerItemText">{{windDirection}}</text>
    </view>
  </view>
 <!-- 底部view -->
  <view class="bottomView">
  <!--数据返回的不是数组 在js中拼接的数组-->
    <block wx:for-items="{{list}}">
      <view class="bottomItemView">
        <image class="bottomImage" src="{{item.day_weather_pic}}" style="margin-bottom: 15rpx;" />
        <text wx:if="{{item.weekday == 1}}" class="bottomText">星期一</text>
        <text wx:elif="{{item.weekday == 2}}" class="bottomText">星期二</text>
        <text wx:elif="{{item.weekday == 3}}" class="bottomText">星期三</text>
        <text wx:elif="{{item.weekday == 4}}" class="bottomText">星期四</text>
        <text wx:elif="{{item.weekday == 5}}" class="bottomText">星期五</text>
        <text wx:elif="{{item.weekday == 6}}" class="bottomText">星期六</text>
        <text wx:else="{{item.weekday == 7}}" class="bottomText">星期日</text>
        <view class="degreeView" style="margin-top: 20rpx;">
          <text class="detailInfoDegree">{{item.night_air_temperature}}</text>
          <image class="detailInfoCircle" src="../../image/circle.png" />
          <text class="detailInfoLine">/</text> 
          <text class="detailInfoDegree">{{item.day_air_temperature}}</text>
          <!-- style优先级比class高会覆盖class中相同属性 -->
          <image class="detailInfoCircle" style="margin-left: 57rpx; margin-right: 40rpx" src="../../image/circle.png" />
        </view>
      </view>

wxss文件

.container {
  display: flex;
  flex-direction: column;
  justify-content: space-between;

}
.newTopView {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}
/*  头部样式上半部分*/
.topView {
  flex-direction: column;
  align-self: center;
  margin-top: -450rpx;
}
/*当前度数样式*/
.degreeView {
  flex-direction: row;
  position: relative;
}
/*当前温度度数图标*/
.circle {
  width: 35rpx;
  height: 35rpx;  
  position: absolute;
  left: 130rpx;
} 
/*当前度数数组*/
.degree {
  color: white;
  font-size: 130rpx
}
/*详细View样式*/
.detailInfoView {
  flex-direction: row;
}
/*当前最高和最低温度度数图标*/
.detailInfoCircle {
  width: 20rpx;
  height: 20rpx;  
  position: absolute;
  left: 30rpx;
} 
/*当前度数数组*/
.detailInfoDegree {
  color: white;
  font-size: 30rpx
}
/*斜线*/
.detailInfoLine {
  color: white;
  margin-left: 15rpx;
  font-size: 30rpx;
}
/*比如阴天 晴天，暴雨*/
.detailInfoName {
  font-size: 30rpx;
  color: white;
  margin-left: 20rpx;
  align-self: center
}
/*中间view样式*/
.centerView {
  display: flex;
  flex-direction: row;
  margin-top: -550rpx;
  justify-content: center;
  align-items: center;
}
/*中间view分为两个view*/
.centerItem {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
}
/*Item中图片样式*/
.centerItemImage {
  width: 25rpx;
  height: 25rpx;
}
/*文字样式*/
.centerItemText {
  font-size: 28rpx;
  color: white;
}
/*底部view样式*/
.bottomView {
  margin-top: -200rpx;
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  align-items: center;
}
.bottomItemView {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 200rpx;
}
/*最近七天样式*/
.bottomImage {
  width: 70rpx;
  height: 70rpx;
}
.bottomText {
  font-size: 28rpx;
  color: white;
}

js文件

//index.js
//获取应用实例
var app = getApp()
Page({
  data: {
    //加载状态
    loadingHidden: false,
    //当前温度
    currentTemperature: '',
    //夜间温度
    nightAirTemperature: '',
    //白天温度
    dayAirTemperature: '',
    //当前天气
    weather: '',
    //污染指数
    aqi: '',
    //污染程度
    quality: '',
    //风力
    windPower: '',
    //风向
    windDirection: '',
    //因为数据返回不是数组所以要自己封装一个数组
    list: [],
    height: 0,


  },

  onLoad: function () {
    console.log('onLoad')
    var that = this

    //100%好像不好使 可以获取设备高度
    wx.getSystemInfo({
      success: function (res) {
        that.data.height = res.windowHeight;
      }
    })

    wx.getLocation({
      success: function (res) {
        //通过经纬度请求数据
        wx.request({
          //这个网站有免费API赶紧收藏
          url: 'http://route.showapi.com/9-5',
          data: {
            showapi_appid: '11697',
            showapi_sign: '6c0c15c5ec61454dac5288cea2d32881',
            //
            from: '5',
            lng: res.longitude,
            lat: res.latitude,
            //获取一周情况 0是不获取
            needMoreDay: '1',
            needIndex: '1'
          },
          success: function (res) {
            console.log(res)
            console.log(res.data.showapi_res_body.now.api)
            that.setData({
              //改变加载状态
              loadingHidden: true,

              currentTemperature: res.data.showapi_res_body.now.temperature,
              nightAirTemperature: res.data.showapi_res_body.f1.night_air_temperature,
              dayAirTemperature: res.data.showapi_res_body.f1.day_air_temperature,
              weather: res.data.showapi_res_body.now.weather,
              aqi: res.data.showapi_res_body.now.aqi,
              quality: res.data.showapi_res_body.now.aqiDetail.quality,
              windPower: res.data.showapi_res_body.now.wind_power,
              windDirection: res.data.showapi_res_body.now.wind_direction,
              //拼接数组
              list: [
                {
                  'day_weather_pic': res.data.showapi_res_body.f1.day_weather_pic,
                  'weekday': res.data.showapi_res_body.f1.weekday,
                  'day_air_temperature': res.data.showapi_res_body.f1.day_air_temperature,
                  'night_air_temperature': res.data.showapi_res_body.f1.night_air_temperature
                },
                {
                  'day_weather_pic': res.data.showapi_res_body.f2.day_weather_pic,
                  'weekday': res.data.showapi_res_body.f2.weekday,
                  'day_air_temperature': res.data.showapi_res_body.f2.day_air_temperature,
                  'night_air_temperature': res.data.showapi_res_body.f2.night_air_temperature
                },
                {
                  'day_weather_pic': res.data.showapi_res_body.f3.day_weather_pic,
                  'weekday': res.data.showapi_res_body.f3.weekday,
                  'day_air_temperature': res.data.showapi_res_body.f3.day_air_temperature,
                  'night_air_temperature': res.data.showapi_res_body.f3.night_air_temperature
                },
                {
                  'day_weather_pic': res.data.showapi_res_body.f4.day_weather_pic,
                  'weekday': res.data.showapi_res_body.f4.weekday,
                  'day_air_temperature': res.data.showapi_res_body.f4.day_air_temperature,
                  'night_air_temperature': res.data.showapi_res_body.f4.night_air_temperature
                },
                {
                  'day_weather_pic': res.data.showapi_res_body.f5.day_weather_pic,
                  'weekday': res.data.showapi_res_body.f5.weekday,
                  'day_air_temperature': res.data.showapi_res_body.f5.day_air_temperature,
                  'night_air_temperature': res.data.showapi_res_body.f5.night_air_temperature
                },
                {
                  'day_weather_pic': res.data.showapi_res_body.f6.day_weather_pic,
                  'weekday': res.data.showapi_res_body.f6.weekday,
                  'day_air_temperature': res.data.showapi_res_body.f6.day_air_temperature,
                  'night_air_temperature': res.data.showapi_res_body.f6.night_air_temperature
                },
                {
                  'day_weather_pic': res.data.showapi_res_body.f7.day_weather_pic,
                  'weekday': res.data.showapi_res_body.f7.weekday,
                  'day_air_temperature': res.data.showapi_res_body.f7.day_air_temperature,
                  'night_air_temperature': res.data.showapi_res_body.f7.night_air_temperature
                }

              ]
            })
          }
        })
      }
    })
  }
})

四、天气预报例子3

wxml文件

<!--index.wxml-->
<image src="../../assets/day.jpg" class="bg"></image>
<view class="container">
 
  <view class="nowWeather">
    <view class="city w">{{city}} {{district}}</view>
    <view class="road w">{{street}}</view>
    <view class="temp w b">{{tmp}}°</view>
    <view class="weather w">{{txt}} | 空气 {{qlty}}</view>
  </view>
 
  <view class="weahterDetail">
    <view class="">
      <view class="w center">{{dir}}</view>
      <view wx:if="{{sc == '微风'}}" class="w b center f50">微风</view>
      <view wx:else class="w b center f50">{{sc}}级</view>
    </view>
    <view class="l"></view>
    <view class="">
      <view class="w center">相对湿度</view>
      <view class="w b center f50">{{hum}}%</view>
    </view>
    <view class="l"></view>
    <view class="">
      <view class="w center">体感温度</view>
      <view class="w b center f50">{{fl}}°</view>
    </view>
  </view>
 
</view>
 
 
<view wx:for="{{daily_forecast}}" wx:for-index="i" wx:for-item="item">
  <view class="hor forcast">
    <view class="center">{{day[i]}}</view>
    <view class="hor">
      <image class="img" src="../../assets/icons/{{item.cond.code_d}}.png"></image>
      <view class="center">{{item.cond.txt_d}}|{{qlty}}</view>
    </view>
    <view class="center">{{item.tmp.min}}°/ {{item.tmp.max}}°</view>
  </view>
</view>

wxss文件

/**index.wxss**/
/**common css**/
.w{
  color: white;
}
.b{
  font-weight: bold;
}
 
.l{
  border: 1rpx solid #fff;
}
 
.center{
  text-align: center;
  margin: auto 0;
}
 
.hor{
  display: flex;
}
 
.f50{
  font-size: 50rpx;
}
 
/**index css**/
 
 
.bg {
  width: 100%;
  height: 700rpx;
}
 
.temp{
  font-size: 170rpx;
}
 
.container {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  padding: 0;
  margin: 0;
  height: 700rpx;
  display: block;
}
 
.nowWeather{
  padding: 60rpx;
}
 
.weahterDetail{
  width: 100%;
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  position: absolute;
  bottom: 50rpx;
}
 
.forcast{
  padding: 30rpx;
  margin-left: 16rpx;
  margin-right: 16rpx;
  border-bottom: 1rpx solid #eee;
  justify-content: space-around;
}
 
.img{
  width: 60rpx;
  height: 60rpx;
  margin-right: 16rpx;
}

js文件

//index.js
//获取应用实例
var app = getApp()
var day = ["今天","明天","后天"];
Page({
  data: {
    day : day,
  },
 
  onLoad: function () {
    console.log('onLoad')
    var that = this
 
    that.getLocation();
  },
 
  //获取经纬度方法
  getLocation: function () {
    var that = this
    wx.getLocation({
      type: 'wgs84',
      success: function (res) {
        var latitude = res.latitude
        var longitude = res.longitude
        console.log("lat:" + latitude + " lon:" + longitude);
 
        that.getCity(latitude, longitude);
      }
    })
  },
 
  //获取城市信息
  getCity: function (latitude, longitude) {
    var that = this
    var url = "https://api.map.baidu.com/geocoder/v2/";
    var params = {
      ak: "1G50Crx5QIKWy5o4R5Q1ONFSgmFIxfIR",
      output: "json",
      location: latitude + "," + longitude
    }
    wx.request({
      url: url,
      data: params,
      success: function (res) {
        var city = res.data.result.addressComponent.city;
        var district = res.data.result.addressComponent.district;
        var street = res.data.result.addressComponent.street;
 
        that.setData({
          city: city,
          district: district,
          street: street,
        })
 
        var descCity = city.substring(0, city.length - 1);
        that.getWeahter(descCity);
      },
      fail: function (res) { },
      complete: function (res) { },
    })
  },
 
  //获取天气信息
  getWeahter: function (city) {
    var that = this
    var url = "https://free-api.heweather.com/v5/weather"
    var params = {
      city: city,
      key: "894fc2a749104d679fa022c3e71afe83"
    }
    wx.request({
      url: url,
      data: params,
      success: function (res) {
        var tmp = res.data.HeWeather5[0].now.tmp;
        var txt = res.data.HeWeather5[0].now.cond.txt;
        var code = res.data.HeWeather5[0].now.cond.code;
        var qlty = res.data.HeWeather5[0].aqi.city.qlty;
        var dir = res.data.HeWeather5[0].now.wind.dir;
        var sc = res.data.HeWeather5[0].now.wind.sc;
        var hum = res.data.HeWeather5[0].now.hum;
        var fl = res.data.HeWeather5[0].now.fl;
        var daily_forecast = res.data.HeWeather5[0].daily_forecast;
        that.setData({
          tmp: tmp,
          txt: txt,
          code: code,
          qlty: qlty,
          dir: dir,
          sc: sc,
          hum: hum,
          fl: fl,
          daily_forecast: daily_forecast
        })
      },
      fail: function (res) { },
      complete: function (res) { },
    })
  }
 
})

五、天气预报例子4

注：背景图片可以自己更新，icons包里的天气小图标可以在和风官网天气状况和图标打包下载。
图标网址：https://dev.heweather.com/docs/refer/condition

wxml文件

<!--index.wxml-->
<image src="../images/bj4.jpg" class="bg"></image>
<view class="container">
  <view class="nowWeather">
    <view class="city w">{{city}} {{district}}</view>
    <view class="road w">{{street}}</view>
    <view class="temp w b">{{tmp}}°</view>
    <view class="weather w">{{txt}} | 空气 {{qlty}}</view>
  </view>
 
  <view class="weahterDetail">
    <view class="">
      <view class="w center">{{dir}}</view>
      <view wx:if="{{sc == '微风'}}" class="w b center f50">微风</view>
      <view wx:else class="w b center f50">{{sc}}级</view>
    </view>
    <view class="l"></view>
    <view class="">
      <view class="w center">相对湿度</view>
      <view class="w b center f50">{{hum}}%</view>
    </view>
    <view class="l"></view>
    <view class="">
      <view class="w center">体感温度</view>
      <view class="w b center f50">{{fl}}°</view>
    </view>
  </view>
</view>
<view wx:key="item" wx:for-items="{{daily_forecast}}" wx:for-index="i">
  <view class="hor forcast">
   <view class="day">{{day[i]}}</view>
    <view class="hor">
     <image class="img" src="../images/icons/{{item.cond_code_d}}.png"></image>
      <view class="center">{{item.cond_txt_d}}|{{qlty}}</view>
    </view>
    <view class="tmp">最低{{item.tmp_min}}°/ 最高{{item.tmp_max}}°</view>
  </view>
</view>
<view class='notice-wrap' hidden='{{hideNotice}}'>
  <image class="img" style="position:absolute;" src="../images/icons/gg2.png"></image>
　　<view class='tongzhitext'>
　　　　<text class="tongzhi-text">{{notice}}</text>
　　</view>
　　<!--<view bindtap='switchNotice' class="closeView">x</view>-->
</view>

wxss文件

/**index.wxss**/
/**common css**/
.w{
  color: white;
}
.b{
  font-weight: bold;
}
.l{
  border: 1rpx solid #fff;
}
.center{
  text-align: center;
  margin: auto 0;
}
 .day{
  text-align: center;
  margin: auto 0;
  width: 20%;
}
 .tmp{
  text-align: center;
  margin: auto 0;
  width: 50%;
  margin-left: 25rpx;
}
.hor{
  display: flex;
}
.f50{
  font-size: 50rpx;
}
/**index css**/
.bg {
  width: 100%;
  height: 700rpx;
}
 
.temp{
  font-size: 170rpx;
}

.container {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  padding: 0;
  margin: 0;
  height: 700rpx;
  display: block;
}
.nowWeather{
  padding: 60rpx;
}
.weahterDetail{
  width: 100%;
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  position: absolute;
  bottom: 50rpx;
}
.forcast{
  padding: 30rpx;
  margin-left: 16rpx;
  margin-right: 16rpx;
  border-bottom: 1rpx solid #eee;

}
.img{
  width: 60rpx;
  height: 60rpx;
  margin-right: 16rpx;
}
@keyframes remindMessage {
  0% {
    -webkit-transform: translateX(90%);
  }

  100% {
    -webkit-transform: translateX(-180%);
  }
}

.tongzhitext {
  /* margin-right:80rpx; */
  margin-left: 60rpx;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  height: 22px;
}

.tongzhi-text {
  font-size: 30rpx;
  animation: remindMessage 14s linear infinite;
  width: 100%;
  color: #000000;
  display: block;
  margin-top: 5rpx;
}

.notice-wrap {
  background: rgb(245, 241, 240);
  width: 100%;
  height: 60rpx;
  line-height: 10rpx;
  color: #d09868;
  font-size: 28rpx;
}

.closeView {
  width: 45rpx;
  height: 45rpx;
  line-height: 45rpx;
  position: absolute;
  right: 20rpx;
  top: 5rpx;
  text-align: center;
  font-size: 35rpx;
}

js文件

//index.js
//获取应用实例
var app = getApp()
var day = ["今天", "明天", "后天"];
Page({
  data: {
    //初始化数据
    hideNotice: false,
    day: day,
  },

  onLoad: function () {
    var that = this
    that.getLocation();
  },

  //获取经纬度方法
  getLocation: function () {
    var that = this
    wx.getLocation({
      type: 'wgs84',
      success: function (res) {
        var latitude = res.latitude
        var longitude = res.longitude
        that.getCity(latitude, longitude);
      }
    })
  },
  //获取城市信息
  getCity: function (latitude, longitude) {
    var that = this
    var url = "https://api.map.baidu.com/reverse_geocoding/v3/";
    var params = {
      ak: "创建申请百度地图key",
      output: "json",
      location: latitude + "," + longitude
    }
    wx.request({
      url: url,
      data: params,
      success: function (res) {
        var city = res.data.result.addressComponent.city;
        var district = res.data.result.addressComponent.district;
        var street = res.data.result.addressComponent.street;

        that.setData({
          city: city,
          district: district,
          street: street,
        })

        var descCity = city.substring(0, city.length - 1);
        that.getWeahter(descCity);
      },
      fail: function (res) { },
      complete: function (res) { },
    })
  },

  //获取常规天气信息
  getWeahter: function (city) {
    var that = this
    var url = "https://free-api.heweather.net/s6/weather"
    var params = {
      location: city,
      key: "创建申请和风天气key"    }
    wx.request({
      url: url,
      data: params,
      success: function (res) {
        var tmp = res.data.HeWeather6[0].now.tmp;
        var txt = res.data.HeWeather6[0].now.cond_txt;
        var code = res.data.HeWeather6[0].now.cond_code;
        var vis = res.data.HeWeather6[0].now.vis;
        var dir = res.data.HeWeather6[0].now.wind_dir;
        var sc = res.data.HeWeather6[0].now.wind_sc;
        var hum = res.data.HeWeather6[0].now.hum;
        var fl = res.data.HeWeather6[0].now.fl;
        var notice = res.data.HeWeather6[0].lifestyle[2].txt;
        var daily_forecast = res.data.HeWeather6[0].daily_forecast;
        that.setData({
          tmp: tmp,
          txt: txt,
          code: code,
          vis: vis,
          dir: dir,
          sc: sc,
          hum: hum,
          fl: fl,
          daily_forecast: daily_forecast,
          notice: notice
        })
        that.getWeahterAir(city);
      },
      fail: function (res) { },
      complete: function (res) { },
    })
  },
  //获取空气质量
  getWeahterAir: function (city) {
    var that = this
    var url = "https://free-api.heweather.net/s6/air"
    var params = {
      location: city,
      key: "创建申请和风天气key"    }
    wx.request({
      url: url,
      data: params,
      success: function (res) {
        var qlty = res.data.HeWeather6[0].air_now_city.qlty;
        that.setData({
          qlty: qlty,
        })
      },
      fail: function (res) { },
      complete: function (res) { },
    })
  },
  //下拉刷新
  onPullDownRefresh: function () {
    var that = this
    that.getLocation();
    //下拉刷新后回弹
    wx.stopPullDownRefresh();
  },
  // 点击关闭公告
  /*switchNotice: function () {
    this.setData({
      hideNotice: true
    })
  },*/
}
)

json文件

{
  "usingComponents": {},
  "enablePullDownRefresh": true,
  "backgroundTextStyle": "dark"
}