分享一个可以获取7天24小时的天气预报API，包含PM2.5等数据

api地址：

pm2.5 api
http://api.lib360.net/open/pm2.5.json?city=苏州

7天24小时天气api
http://api.lib360.net/open/weather.json?city=苏州

GET请求

参数

prov   可选省份 如：江苏  河北

city   城市名称 如：苏州 上海

返回数据格式json

data 字段 返回7天的天气状况，包含今天

data24 返回 今天24小时内的预报 

pm25 返回当前城市的 pm25 值

{
    "data" : [{
            "AreaID" : "101190401",  //地区id
            "Year" : 2015, //年
            "Month" : 3,  //月
            "Day" : 19, //日
            "Weather" : "阴转小雨", //天气状况
            "WeatherICON" : "d02",  //天气图标
            "TempMax" : 16,  //最高温度 
            "TempMin" : 10,  //最低温度
            "WindA" : "东北风", //风向
            "WindB" : "东风",//风向
            "Wind" : "微风", //风速
            "Date" : "\/Date(1426694400000)\/"  //时间
        }, {
            "AreaID" : "101190401",
            "Year" : 2015,
            "Month" : 3,
            "Day" : 20,
            "Weather" : "小雨转多云",
            "WeatherICON" : "d07",
            "TempMax" : 14,
            "TempMin" : 10,
            "WindA" : "东北风",
            "WindB" : "东风",
            "Wind" : "微风",
            "Date" : "\/Date(1426780800000)\/"
        }, {
            "AreaID" : "101190401",
            "Year" : 2015,
            "Month" : 3,
            "Day" : 21,
            "Weather" : "多云",
            "WeatherICON" : "d01",
            "TempMax" : 19,
            "TempMin" : 11,
            "WindA" : "西风",
            "WindB" : "西风",
            "Wind" : "微风",
            "Date" : "\/Date(1426867200000)\/"
        }, {
            "AreaID" : "101190401",
            "Year" : 2015,
            "Month" : 3,
            "Day" : 22,
            "Weather" : "多云",
            "WeatherICON" : "d01",
            "TempMax" : 17,
            "TempMin" : 9,
            "WindA" : "东风",
            "WindB" : "东风",
            "Wind" : "3-4级",
            "Date" : "\/Date(1426953600000)\/"
        }, {
            "AreaID" : "101190401",
            "Year" : 2015,
            "Month" : 3,
            "Day" : 23,
            "Weather" : "多云转阴",
            "WeatherICON" : "d01",
            "TempMax" : 14,
            "TempMin" : 8,
            "WindA" : "东风",
            "WindB" : "东风",
            "Wind" : "4-5级转微风",
            "Date" : "\/Date(1427040000000)\/"
        }, {
            "AreaID" : "101190401",
            "Year" : 2015,
            "Month" : 3,
            "Day" : 24,
            "Weather" : "多云",
            "WeatherICON" : "d01",
            "TempMax" : 15,
            "TempMin" : 6,
            "WindA" : "东风",
            "WindB" : "东风",
            "Wind" : "微风",
            "Date" : "\/Date(1427126400000)\/"
        }, {
            "AreaID" : "101190401",
            "Year" : 2015,
            "Month" : 3,
            "Day" : 25,
            "Weather" : "多云",
            "WeatherICON" : "d01",
            "TempMax" : 15,
            "TempMin" : 6,
            "WindA" : "东风",
            "WindB" : "东风",
            "Wind" : "微风",
            "Date" : "\/Date(1427212800000)\/"
        }
    ],
    "data24" : [{
            "AreaID" : "101190401",
            "Year" : 2015,
            "Month" : 3,
            "Day" : 19,
            "BeginHour" : 5,
            "EndHour" : 8,
            "Weather" : "小雨",
            "WeatherICON" : "d07",
            "TempMax" : 11,
            "TempMin" : 11,
            "Wind" : "微风",
            "WindD" : "东风",
            "Date" : "\/Date(1426694400000)\/"
        }, {
            "AreaID" : "101190401",
            "Year" : 2015,
            "Month" : 3,
            "Day" : 19,
            "BeginHour" : 8,
            "EndHour" : 11,
            "Weather" : "阴",
            "WeatherICON" : "d02",
            "TempMax" : 14,
            "TempMin" : 11,
            "Wind" : "微风",
            "WindD" : "东北风",
            "Date" : "\/Date(1426694400000)\/"
        }, {
            "AreaID" : "101190401",
            "Year" : 2015,
            "Month" : 3,
            "Day" : 19,
            "BeginHour" : 11,
            "EndHour" : 14,
            "Weather" : "多云",
            "WeatherICON" : "d01",
            "TempMax" : 16,
            "TempMin" : 14,
            "Wind" : "微风",
            "WindD" : "东北风",
            "Date" : "\/Date(1426694400000)\/"
        }, {
            "AreaID" : "101190401",
            "Year" : 2015,
            "Month" : 3,
            "Day" : 19,
            "BeginHour" : 14,
            "EndHour" : 17,
            "Weather" : "晴",
            "WeatherICON" : "d00",
            "TempMax" : 16,
            "TempMin" : 16,
            "Wind" : "微风",
            "WindD" : "东北风",
            "Date" : "\/Date(1426694400000)\/"
        }
    ],
    "datanow" : {
        "AreaID" : "101190401",
        "Year" : 2015,
        "Month" : 3,
        "Day" : 19,
        "BeginHour" : 14,
        "EndHour" : 17,
        "Weather" : "晴",
        "WeatherICON" : "d00",
        "TempMax" : 16,
        "TempMin" : 16,
        "Wind" : "微风",
        "WindD" : "东北风",
        "Date" : "\/Date(1426694400000)\/"
    },
    "pm25" : 133
}

转载自：http://segmentfault.com/a/1190000002607883