获取天气v2

[
    {
        "name": "key",
        "type": "string",
        "required": false,
        "description": "平台 API 访问密钥（选填）",
        "example": "sk_xxxxxxxxxxxxxxxx"
    },
    {
        "name": "city",
        "type": "string",
        "required": false,
        "description": "城市名称，如：北京、上海、广州。优先使用此参数，系统自动转换为城市ID",
        "example": ""
    },
    {
        "name": "cityId",
        "type": "string",
        "required": false,
        "description": "9位数字城市代码，如：101010100（北京）。当city参数为空时使用",
        "example": ""
    }
]

{
  "code": 200,
  "message": "success",
  "data": {
    "update_time": "2026-03-13 17:30:00",
    "city_info": {
      "city": "北京",
      "city_id": "101010100",
      "parent": "北京",
      "weather_update_time": "17:25"
    },
    "current": {
      "date": "13",
      "temperature": "18",
      "humidity": "45%",
      "pm25": 35,
      "pm10": 68,
      "quality": "良",
      "cold_index": "各项气象条件适宜，发生感冒机率较低。"
    },
    "yesterday": {
      "date": "12",
      "high": "高温 20℃",
      "low": "低温 8℃",
      "type": "晴",
      "fx": "北风",
      "fl": "3级",
      "aqi": 45
    },
    "forecast": [
      {
        "date": "14",
        "high": "高温 22℃",
        "low": "低温 10℃",
        "type": "多云",
        "fx": "南风",
        "fl": "2级",
        "aqi": 52
      }
    ]
  },
  "time": "2026-03-13 17:30:25"
}