The forecast.hours endpoint returns up to 240 hours of forecast information for a specific location, starting at the current hour. The API returns the following:
- A description of the current weather conditions with a corresponding icon
- Current temperature
- Apparent ("feels like") temperature
- Dew point
- Heat index
- Wind chill
- Wet bulb temperature
- Relative humidity
- UV index
- Probability, percentage, and type of precipitation
- Probability of thunderstorms
- Sea level pressure
- Wind direction, speed, and gust
- Visibility and cloud cover
The APIs Explorer lets you make live requests so that you can get familiar with the API and the API options:
About hourly forecast requests
To request hourly forecast information, send an HTTP GET request to:
https://weather.googleapis.com/v1/forecast/hours: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.
Hourly forecast request examples
By default, the
forecast.hours
endpoint returns 240 hours of data, starting from the current hour. You can
scope your request to a particular time period using the hours parameter.
The following example requests hourly forecast information for the next three hours for Mountain View, CA:
curl -X GET "https://weather.googleapis.com/v1/forecast/hours:lookup?key=YOUR_API_KEY&location.latitude=37.4220 &location.longitude=-122.0841 &hours=3"
In the response, the interval object indicates each hour of information:
{ "forecastHours": [ { "interval": { "startTime": "2025-02-05T23:00:00Z", "endTime": "2025-02-06T00:00:00Z" }, "displayDateTime": { "year": 2025, "month": 2, "day": 5, "hours": 15, "utcOffset": "-28800s" }, "isDaytime": true, "weatherCondition": { "iconBaseUri": "https://maps.gstatic.com/weather/v1/sunny", "description": { "text": "Sunny", "languageCode": "en" }, "type": "CLEAR" }, "temperature": { "degrees": 12.7, "unit": "CELSIUS" }, "feelsLikeTemperature": { "degrees": 12, "unit": "CELSIUS" }, "dewPoint": { "degrees": 2.7, "unit": "CELSIUS" }, "heatIndex": { "degrees": 12.7, "unit": "CELSIUS" }, "windChill": { "degrees": 12, "unit": "CELSIUS" }, "wetBulbTemperature": { "degrees": 7.7, "unit": "CELSIUS" }, "relativeHumidity": 51, "uvIndex": 1, "precipitation": { "probability": { "percent": 0, "type": "RAIN" }, "qpf": { "quantity": 0, "unit": "MILLIMETERS" } }, "thunderstormProbability": 0, "airPressure": { "meanSeaLevelMillibars": 1019.13 }, "wind": { "direction": { "degrees": 335, "cardinal": "NORTH_NORTHWEST" }, "speed": { "value": 10, "unit": "KILOMETERS_PER_HOUR" }, "gust": { "value": 19, "unit": "KILOMETERS_PER_HOUR" } }, "visibility": { "distance": 16, "unit": "KILOMETERS" }, "cloudCover": 0, "iceThickness": { "thickness": 0, "unit": "MILLIMETERS" } }, { "interval": { "startTime": "2025-02-06T00:00:00Z", "endTime": "2025-02-06T01:00:00Z" }, "displayDateTime": { "year": 2025, "month": 2, "day": 5, "hours": 16, "utcOffset": "-28800s" }, "isDaytime": true, "weatherCondition": { "iconBaseUri": "https://maps.gstatic.com/weather/v1/sunny", "description": { "text": "Sunny", "languageCode": "en" }, "type": "CLEAR" }, "temperature": { "degrees": 12.5, "unit": "CELSIUS" }, /.../ }, { "interval": { "startTime": "2025-02-06T01:00:00Z", "endTime": "2025-02-06T02:00:00Z" }, "displayDateTime": { "year": 2025, "month": 2, "day": 5, "hours": 17, "utcOffset": "-28800s" }, "isDaytime": true, "weatherCondition": { "iconBaseUri": "https://maps.gstatic.com/weather/v1/sunny", "description": { "text": "Sunny", "languageCode": "en" }, "type": "CLEAR" }, "temperature": { "degrees": 11.4, "unit": "CELSIUS" }, /.../ } ], "timeZone": { "id": "America/Los_Angeles" } }
Specify number of hours to return per page
You can specify the number of hours of data to return per page using the
pageSize URL parameter. The default value is 24 hours 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 25 hours of weather forecast data for Mountain View, CA, with three hours of data per page:
curl -X GET "https://weather.googleapis.com/v1/forecast/hours:lookup?key=YOUR_API_KEY&location.latitude=37.4220 &location.longitude=-122.0841 &hours=25&pageSize=3"
The response, which includes the first three hours of data, is in the form:
{ "forecastHours": [ { "interval": { "startTime": "2025-02-06T23:00:00Z", "endTime": "2025-02-07T00:00:00Z" }, "displayDateTime": { "year": 2025, "month": 2, "day": 6, "hours": 15, "utcOffset": "-28800s" }, "isDaytime": true, "weatherCondition": { "iconBaseUri": "https://maps.gstatic.com/weather/v1/showers", "description": { "text": "Rain showers", "languageCode": "en" }, "type": "RAIN_SHOWERS" }, "temperature": { "degrees": 14.6, "unit": "CELSIUS" }, /.../ }, { "interval": { "startTime": "2025-02-07T00:00:00Z", "endTime": "2025-02-07T01:00:00Z" }, "displayDateTime": { "year": 2025, "month": 2, "day": 6, "hours": 16, "utcOffset": "-28800s" }, "isDaytime": true, "weatherCondition": { "iconBaseUri": "https://maps.gstatic.com/weather/v1/drizzle", "description": { "text": "Light rain", "languageCode": "en" }, "type": "LIGHT_RAIN" }, "temperature": { "degrees": 14.4, "unit": "CELSIUS" }, /.../ }, { "interval": { "startTime": "2025-02-07T01:00:00Z", "endTime": "2025-02-07T02:00:00Z" }, "displayDateTime": { "year": 2025, "month": 2, "day": 6, "hours": 17, "utcOffset": "-28800s" }, "isDaytime": true, "weatherCondition": { "iconBaseUri": "https://maps.gstatic.com/weather/v1/cloudy", "description": { "text": "Cloudy", "languageCode": "en" }, "type": "CLOUDY" }, "temperature": { "degrees": 14.4, "unit": "CELSIUS" }, /.../ } ], "timeZone": { "id": "America/Los_Angeles" }, "nextPageToken": "ChYKEgm8dJMYBLZCQBH-ZffkYYVewBAZEAMYAyIMCLKClb0GEJeO18kDKhNBbWVyaWNhL0xvc19BbmdlbGVz" }
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/hours:lookup?key=YOUR_API_KEY&location.latitude=37.4220 &location.longitude=-122.0841 &hours=25 &pageSize=3 &pageToken=ChYKEgm8dJMYBLZCQBH-ZffkYYVewBAZEAMYAyIMCLKClb0GEJeO18kDKhNBbWVyaWNhL0xvc19BbmdlbGVz"
The response is in the form:
{ "forecastHours": [ { "interval": { "startTime": "2025-02-07T02:00:00Z", "endTime": "2025-02-07T03:00:00Z" }, "displayDateTime": { "year": 2025, "month": 2, "day": 6, "hours": 18, "utcOffset": "-28800s" }, "isDaytime": false, "weatherCondition": { "iconBaseUri": "https://maps.gstatic.com/weather/v1/cloudy", "description": { "text": "Cloudy", "languageCode": "en" }, "type": "CLOUDY" }, "temperature": { "degrees": 14.3, "unit": "CELSIUS" }, /.../ }, { "interval": { "startTime": "2025-02-07T03:00:00Z", "endTime": "2025-02-07T04:00:00Z" }, "displayDateTime": { "year": 2025, "month": 2, "day": 6, "hours": 19, "utcOffset": "-28800s" }, "isDaytime": false, "weatherCondition": { "iconBaseUri": "https://maps.gstatic.com/weather/v1/showers", "description": { "text": "Rain showers", "languageCode": "en" }, "type": "RAIN_SHOWERS" }, "temperature": { "degrees": 14.2, "unit": "CELSIUS" }, /.../ }, { "interval": { "startTime": "2025-02-07T04:00:00Z", "endTime": "2025-02-07T05:00:00Z" }, "displayDateTime": { "year": 2025, "month": 2, "day": 6, "hours": 20, "utcOffset": "-28800s" }, "isDaytime": false, "weatherCondition": { "iconBaseUri": "https://maps.gstatic.com/weather/v1/showers", "description": { "text": "Rain showers", "languageCode": "en" }, "type": "RAIN_SHOWERS" }, "temperature": { "degrees": 14.1, "unit": "CELSIUS" }, /.../ } ], "timeZone": { "id": "America/Los_Angeles" }, "nextPageToken": "ChYKEgm8dJMYBLZCQBH-ZffkYYVewBAZEAYYBiILCPeDlb0GEICs5TMqE0FtZXJpY2EvTG9zX0FuZ2VsZXM=" }
Try it!
The APIs Explorer lets you make sample requests so that you can get familiar with the API and the API options.
Select the API icon api on the right side of the page.
Optionally edit the request parameters.
Select the Execute button. In the dialog, choose the account that you want to use to make the request.
In the APIs Explorer panel, select the fullscreen icon fullscreen to expand the APIs Explorer window.