Get daily forecast

The forecast.days endpoint returns up to 10 days of forecast information for a specific location, starting with the current day. The API returns the following:

  • A description of the daytime (7:00 AM to 7:00 PM) and nighttime (7:00 PM to 7:00 AM) weather conditions with corresponding icons
  • Daily maximum and minimum temperatures
  • Daily maximum and minimum apparent ("feels like") temperatures
  • Heat index
  • Relative humidity
  • UV index
  • Probability, percentage, quantity, and type of precipitation
  • Probability of thunderstorms
  • Sea level pressure
  • Wind chill
  • Wind direction, speed, and gust
  • Ice thickness
  • Visibility and cloud cover
  • Daily sunrise, sunset, moonrise, and moonset times

About daily forecast requests

To request current conditions, send an HTTP GET request to:

https://weather.googleapis.com/v1/forecast/days:lookup?key=YOUR_API_KEY&location.latitude=LATITUDE&location.longitude=LONGITUDE

Include the latitude and longitude coordinates of the location in your request URL parameters.

Daily forecast request examples

By default, the forecast.days endpoint returns 10 days of data, starting from the current hour. You can scope your request to a particular number of days using the days parameter.

The following example requests daily forecast information for the next two days for Mountain View, CA:

curl -X GET "https://weather.googleapis.com/v1/forecast/days:lookup?key=YOUR_API_KEY&location.latitude=37.4220&location.longitude=-122.0841&days=2"

In the response, the interval object indicates each day of information:

{
  "forecastDays": [
    {
      "interval": {
        "startTime": "2025-02-10T15:00:00Z",
        "endTime": "2025-02-11T15:00:00Z"
      },
      "displayDate": {
        "year": 2025,
        "month": 2,
        "day": 10
      },
      "daytimeForecast": {
        "interval": {
          "startTime": "2025-02-10T15:00:00Z",
          "endTime": "2025-02-11T03:00:00Z"
        },
        "weatherCondition": {
          "iconBaseUri": "https://maps.gstatic.com/weather/v1/party_cloudy",
          "description": {
            "text": "Partly sunny",
            "languageCode": "en"
          },
          "type": "PARTLY_CLOUDY"
        },
        "relativeHumidity": 54,
        "uvIndex": 3,
        "precipitation": {
          "probability": {
            "percent": 5,
            "type": "RAIN"
          },
          "qpf": {
            "quantity": 0,
            "unit": "MILLIMETERS"
          }
        },
        "thunderstormProbability": 0,
        "wind": {
          "direction": {
            "degrees": 280,
            "cardinal": "WEST"
          },
          "speed": {
            "value": 6,
            "unit": "KILOMETERS_PER_HOUR"
          },
          "gust": {
            "value": 14,
            "unit": "KILOMETERS_PER_HOUR"
          }
        },
        "cloudCover": 53
      },
      "nighttimeForecast": {
        "interval": {
          "startTime": "2025-02-11T03:00:00Z",
          "endTime": "2025-02-11T15:00:00Z"
        },
        "weatherCondition": {
          "iconBaseUri": "https://maps.gstatic.com/weather/v1/partly_clear",
          "description": {
            "text": "Partly cloudy",
            "languageCode": "en"
          },
          "type": "PARTLY_CLOUDY"
        },
        "relativeHumidity": 85,
        "uvIndex": 0,
        "precipitation": {
          "probability": {
            "percent": 10,
            "type": "RAIN_AND_SNOW"
          },
          "qpf": {
            "quantity": 0,
            "unit": "MILLIMETERS"
          }
        },
        "thunderstormProbability": 0,
        "wind": {
          "direction": {
            "degrees": 201,
            "cardinal": "SOUTH_SOUTHWEST"
          },
          "speed": {
            "value": 6,
            "unit": "KILOMETERS_PER_HOUR"
          },
          "gust": {
            "value": 14,
            "unit": "KILOMETERS_PER_HOUR"
          }
        },
        "cloudCover": 70
      },
      "maxTemperature": {
        "degrees": 13.3,
        "unit": "CELSIUS"
      },
      "minTemperature": {
        "degrees": 1.5,
        "unit": "CELSIUS"
      },
      "feelsLikeMaxTemperature": {
        "degrees": 13.3,
        "unit": "CELSIUS"
      },
      "feelsLikeMinTemperature": {
        "degrees": 1.5,
        "unit": "CELSIUS"
      },
      "sunEvents": {
        "sunriseTime": "2025-02-10T15:02:35.703929582Z",
        "sunsetTime": "2025-02-11T01:43:00.762932858Z"
      },
      "moonEvents": {
        "moonPhase": "WAXING_GIBBOUS",
        "moonriseTimes": [
          "2025-02-10T23:54:17.713157984Z"
        ],
        "moonsetTimes": [
          "2025-02-10T14:13:58.625181191Z"
        ]
      },
      "maxHeatIndex": {
        "degrees": 13.3,
        "unit": "CELSIUS"
      },
      "iceThickness": {
        "thickness": 0,
        "unit": "MILLIMETERS"
      }
    },
    {
      "interval": {
        "startTime": "2025-02-11T15:00:00Z",
        "endTime": "2025-02-12T15:00:00Z"
      },
      "displayDate": {
        "year": 2025,
        "month": 2,
        "day": 11
      },
      "daytimeForecast": {
        "interval": {
          "startTime": "2025-02-11T15:00:00Z",
          "endTime": "2025-02-12T03:00:00Z"
        },
        "weatherCondition": {
          "iconBaseUri": "https://maps.gstatic.com/weather/v1/scattered_showers",
          "description": {
            "text": "Scattered showers",
            "languageCode": "en"
          },
          "type": "SCATTERED_SHOWERS"
        },
      /.../
      }
    }
  ],
  "timeZone": {
    "id": "America/Los_Angeles"
  }
}

Specify number of days to return per page

You can specify the number of days of data to return per page using the pageSize URL parameter. The default value is five days of forecast information per page.

Responses with multiple pages of information include a nextPageToken. To view the next page of information, pass the nextPageToken value into the pageToken parameter in your request.

The following example requests six days of weather forecast data for Mountain View, CA, with three days of data per page:

curl -X GET "https://weather.googleapis.com/v1/forecast/days:lookup?key=YOUR_API_KEY&location.latitude=37.4220&location.longitude=-122.0841&days=6&pageSize=3"

The response, which includes the first 3 days of data, is in the form:

{
  "forecastDays": [
    {
      "interval": {
        "startTime": "2025-02-10T15:00:00Z",
        "endTime": "2025-02-11T15:00:00Z"
      },
      "displayDate": {
        "year": 2025,
        "month": 2,
        "day": 10
      },
      "daytimeForecast": {
        "interval": {
          "startTime": "2025-02-10T15:00:00Z",
          "endTime": "2025-02-11T03:00:00Z"
        },
        "weatherCondition": {
          "iconBaseUri": "https://maps.gstatic.com/weather/v1/party_cloudy",
          "description": {
            "text": "Partly sunny",
            "languageCode": "en"
          },
          "type": "PARTLY_CLOUDY"
        },
        "relativeHumidity": 52,
        "uvIndex": 3,
        "precipitation": {
          "probability": {
            "percent": 5,
            "type": "RAIN"
          },
          "qpf": {
            "quantity": 0,
            "unit": "MILLIMETERS"
          }
        },
        "thunderstormProbability": 0,
        "wind": {
          "direction": {
            "degrees": 280,
            "cardinal": "WEST"
          },
          "speed": {
            "value": 6,
            "unit": "KILOMETERS_PER_HOUR"
          },
          "gust": {
            "value": 14,
            "unit": "KILOMETERS_PER_HOUR"
          }
        },
        "cloudCover": 53
      },
      "nighttimeForecast": {
        "interval": {
          "startTime": "2025-02-11T03:00:00Z",
          "endTime": "2025-02-11T15:00:00Z"
        },
        "weatherCondition": {
          "iconBaseUri": "https://maps.gstatic.com/weather/v1/partly_clear",
          "description": {
            "text": "Partly cloudy",
            "languageCode": "en"
          },
          "type": "PARTLY_CLOUDY"
        },
        "relativeHumidity": 85,
        "uvIndex": 0,
        "precipitation": {
          "probability": {
            "percent": 10,
            "type": "RAIN_AND_SNOW"
          },
          "qpf": {
            "quantity": 0,
            "unit": "MILLIMETERS"
          }
        },
        "thunderstormProbability": 0,
        "wind": {
          "direction": {
            "degrees": 201,
            "cardinal": "SOUTH_SOUTHWEST"
          },
          "speed": {
            "value": 6,
            "unit": "KILOMETERS_PER_HOUR"
          },
          "gust": {
            "value": 14,
            "unit": "KILOMETERS_PER_HOUR"
          }
        },
        "cloudCover": 69
      },
      "maxTemperature": {
        "degrees": 13.5,
        "unit": "CELSIUS"
      },
      "minTemperature": {
        "degrees": 1.5,
        "unit": "CELSIUS"
      },
      "feelsLikeMaxTemperature": {
        "degrees": 13.5,
        "unit": "CELSIUS"
      },
      "feelsLikeMinTemperature": {
        "degrees": 1.5,
        "unit": "CELSIUS"
      },
      "sunEvents": {
        "sunriseTime": "2025-02-10T15:02:35.703929582Z",
        "sunsetTime": "2025-02-11T01:43:00.762932858Z"
      },
      "moonEvents": {
        "moonPhase": "WAXING_GIBBOUS",
        "moonriseTimes": [
          "2025-02-10T23:54:17.713157984Z"
        ],
        "moonsetTimes": [
          "2025-02-10T14:13:58.625181191Z"
        ]
      },
      "maxHeatIndex": {
        "degrees": 13.5,
        "unit": "CELSIUS"
      },
      "iceThickness": {
        "thickness": 0,
        "unit": "MILLIMETERS"
      }
    },
    {
      "interval": {
        "startTime": "2025-02-11T15:00:00Z",
        "endTime": "2025-02-12T15:00:00Z"
      },
      "displayDate": {
        "year": 2025,
        "month": 2,
        "day": 11
      },
      /.../
    },
    {
      "interval": {
        "startTime": "2025-02-12T15:00:00Z",
        "endTime": "2025-02-13T15:00:00Z"
      },
      "displayDate": {
        "year": 2025,
        "month": 2,
        "day": 12
      },
      /.../
    }
  ],
  "timeZone": {
    "id": "America/Los_Angeles"
  },
  "nextPageToken": "ChYKEgm8dJMYBLZCQBH-ZffkYYVewBAGEAMYAyILCKyAqr0GEKOR6lUqE0FtZXJpY2EvTG9zX0FuZ2VsZXM="
}

To access the next page of data, pass the nextPageToken value into the pageToken parameter in your request:

curl -X GET "https://weather.googleapis.com/v1/forecast/days:lookup?key=YOUR_API_KEY&location.latitude=37.4220&location.longitude=-122.0841&days=6&pageSize=3&pageToken=ChYKEgm8dJMYBLZCQBH-ZffkYYVewBAGEAMYAyILCKyAqr0GEKOR6lUqE0FtZXJpY2EvTG9zX0FuZ2VsZXM="

The response is in the form:

{
  "forecastDays": [
    {
      "interval": {
        "startTime": "2025-02-13T15:00:00Z",
        "endTime": "2025-02-14T15:00:00Z"
      },
      "displayDate": {
        "year": 2025,
        "month": 2,
        "day": 13
      },
      "daytimeForecast": {
        "interval": {
          "startTime": "2025-02-13T15:00:00Z",
          "endTime": "2025-02-14T03:00:00Z"
        },
        "weatherCondition": {
          "iconBaseUri": "https://maps.gstatic.com/weather/v1/drizzle",
          "description": {
            "text": "Light rain",
            "languageCode": "en"
          },
          "type": "LIGHT_RAIN"
        },
        "relativeHumidity": 81,
        "uvIndex": 2,
        "precipitation": {
          "probability": {
            "percent": 75,
            "type": "RAIN"
          },
          "qpf": {
            "quantity": 15.588,
            "unit": "MILLIMETERS"
          }
        },
        "thunderstormProbability": 20,
        "wind": {
          "direction": {
            "degrees": 181,
            "cardinal": "SOUTH"
          },
          "speed": {
            "value": 14,
            "unit": "KILOMETERS_PER_HOUR"
          },
          "gust": {
            "value": 32,
            "unit": "KILOMETERS_PER_HOUR"
          }
        },
        "cloudCover": 100
      },
      "nighttimeForecast": {
        "interval": {
          "startTime": "2025-02-14T03:00:00Z",
          "endTime": "2025-02-14T15:00:00Z"
        },
        "weatherCondition": {
          "iconBaseUri": "https://maps.gstatic.com/weather/v1/showers",
          "description": {
            "text": "Rain showers",
            "languageCode": "en"
          },
          "type": "RAIN_SHOWERS"
        },
        "relativeHumidity": 87,
        "uvIndex": 0,
        "precipitation": {
          "probability": {
            "percent": 75,
            "type": "RAIN"
          },
          "qpf": {
            "quantity": 11.3513,
            "unit": "MILLIMETERS"
          }
        },
        "thunderstormProbability": 10,
        "wind": {
          "direction": {
            "degrees": 222,
            "cardinal": "SOUTHWEST"
          },
          "speed": {
            "value": 14,
            "unit": "KILOMETERS_PER_HOUR"
          },
          "gust": {
            "value": 31,
            "unit": "KILOMETERS_PER_HOUR"
          }
        },
        "cloudCover": 95
      },
      "maxTemperature": {
        "degrees": 15.9,
        "unit": "CELSIUS"
      },
      "minTemperature": {
        "degrees": 11.2,
        "unit": "CELSIUS"
      },
      "feelsLikeMaxTemperature": {
        "degrees": 15.9,
        "unit": "CELSIUS"
      },
      "feelsLikeMinTemperature": {
        "degrees": 11,
        "unit": "CELSIUS"
      },
      "sunEvents": {
        "sunriseTime": "2025-02-13T14:59:17.439839464Z",
        "sunsetTime": "2025-02-14T01:46:14.345904643Z"
      },
      "moonEvents": {
        "moonPhase": "WANING_GIBBOUS",
        "moonriseTimes": [
          "2025-02-14T03:08:04.049988754Z"
        ],
        "moonsetTimes": [
          "2025-02-13T15:44:40.326916694Z"
        ]
      },
      "maxHeatIndex": {
        "degrees": 15.9,
        "unit": "CELSIUS"
      },
      "iceThickness": {
        "thickness": 0,
        "unit": "MILLIMETERS"
      }
    },
    {
      "interval": {
        "startTime": "2025-02-14T15:00:00Z",
        "endTime": "2025-02-15T15:00:00Z"
      },
      "displayDate": {
        "year": 2025,
        "month": 2,
        "day": 14
      },
      /.../
    },
    {
      "interval": {
        "startTime": "2025-02-15T15:00:00Z",
        "endTime": "2025-02-16T15:00:00Z"
      },
      "displayDate": {
        "year": 2025,
        "month": 2,
        "day": 15
      },
      /.../
    }
  ],
  "timeZone": {
    "id": "America/Los_Angeles"
  }
}