# Tomorrow.io, free: Weather forecast API

> Using the weather forecast API you can access up-to-date weather information for your location, including minute-by-minute forecasts (for premium users) for the next hour, hourly forecasts for the next 120 hours, and daily forecasts for the next 5 days.

Tomorrow.io's weather forecast API on its Free plan. It costs $0.00 per 1,000 places. It returns all 6 key fields we check: Temperature, Precipitation, Wind, Conditions, Humidity, Sun.
You get up to 15,000 calls a month.
We rank 165 plans by price. [OpenWeather's £370 monthly plan](https://datacircle.dev/weather-forecast-apis/openweather/370-monthly-professional-get-data-2-5-forecast/llms.txt) is the cheapest paid plan per 1,000 places: $0.00049.
[Weatherbit](https://datacircle.dev/weather-forecast-apis/weatherbit/495-monthly-business-get-v2-0-forecast-daily/llms.txt), [WeatherAPI.com](https://datacircle.dev/weather-forecast-apis/weatherapi-com/7-monthly/llms.txt) and [MET Norway](https://datacircle.dev/weather-forecast-apis/met-norway/free-get-weatherapi-locationforecast-2-0-complete/llms.txt) are the best weather forecast API providers in our benchmark.

- This page: https://datacircle.dev/weather-forecast-apis/tomorrow-io/free
- [Best weather forecast API in 2026: pricing compared](https://datacircle.dev/best-weather-forecast-api.txt)
- Get it: https://www.tomorrow.io/weather-api/
- Request: `GET https://api.tomorrow.io/v4/weather/forecast`
- API key: with the plan, on https://www.tomorrow.io/weather-api/
- Its API docs: https://docs.tomorrow.io/reference/weather-forecast
- Sold by: Tomorrow.io (https://www.tomorrow.io)
- Checked: 2026-10-30

## In the answer

- Completeness: 100%
- Temperature: ✓
- Precipitation: ✓
- Wind: ✓
- Conditions: ✓
- Humidity: ✓
- Sun: ✓

## Price

- $ per 1,000 places: $0.00
- Per: call
- Billing: free

## Charges

- Also pays for: from the same budget: Realtime Weather · Retrieve Timelines

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Using the weather forecast API you can access up-to-date weather information for your location, including minute-by-minute forecasts (for premium users) for the next hour, hourly forecasts for the next 120 hours, and daily forecasts for the next 5 days.

## Data

- Keep data: "store or otherwise collect or copy the unaltered Datafeed, unless otherwise expressly provided for in the Order or for permitted evaluation of DaaS, in which case Datafeed may only be stored for the duration of the Initial Term [...]" (terms, Restrictions).
- Use data: "Paid Solution offerings may be used for Subscriber's internal business purposes or, as specified in an Order, integrated into Subscriber proprietary commercial applications. Commercial use is strictly prohibited in the case of evaluation, proof of concept, or in connection with self-generated accounts originated on Company's website [...] The Solution may not be distributed, shared, or offered on a standalone basis" (terms, Permitted Use), "any portion of the Solution that incorporates and presents Datafeed shall prominently display the message "Powered by Tomorrow.io" in a legible manner near such data or any information derived from it" (terms, Attribution), "Subscriber acknowledges and agrees not to engage, directly or indirectly, or facilitate engagement by a third party, in the following prohibited activities: [...] Use the Solution to develop, or create, or permit others to develop or create, a product or service in any way similar or competitive to the Solution, as solely determined by Company, Offer any portion or all of the Solution to any third parties [...] including but not limited to reselling, licensing, renting, leasing, transferring, lending, timesharing, assigning or redistributing it or any part thereof or generating revenue thereform. [...] Use robots, crawlers and similar applications to scrape, harvest, collect or compile content or data from or through the Solution, Publish or disclose the results of any benchmark tests performed with respect to the Solution or otherwise use any testing results related to the Solution for commercial, competitive, or other purposes" (terms, Restrictions).

## Plan

- Pay: $0
- Enough for: 15,000 calls a month

## Rate limit

- Per day: 500
- Per second: 0.0069
- Batch: 1

## The call

- You send: location, accept-encoding header "deflate, gzip, br". Optional: timesteps, units
- Method: GET
- Path: /v4/weather/forecast

## About the plan

- Plan: Free
- Who can get it: anyone, for non-commercial use alone

## The 148 fields the plan's answer can hold

latitude, longitude, location name, location type, minute, hour, day, cloud base, cloud ceiling, cloud cover, dew point, evapotranspiration, freezing rain intensity, hail probability, hail size, humidity, ice accumulation, ice accumulation liquid water equivalent, precipitation probability, sea-level pressure, surface pressure, rain accumulation, rain accumulation liquid water equivalent, rain intensity, sleet accumulation, sleet accumulation liquid water equivalent, sleet intensity, snow accumulation, snow accumulation liquid water equivalent, snow depth, snow intensity, temperature, feels-like temperature, UV health concern, UV index, visibility, conditions, wind direction, wind gusts, wind speed, average cloud base, highest cloud base, lowest cloud base, average cloud ceiling, highest cloud ceiling, lowest cloud ceiling, average cloud cover, highest cloud cover, lowest cloud cover, average dew point, highest dew point, lowest dew point, average evapotranspiration, highest evapotranspiration, lowest evapotranspiration, total evapotranspiration, average freezing rain intensity, highest freezing rain intensity, lowest freezing rain intensity, average hail probability, highest hail probability, lowest hail probability, average hail size, highest hail size, lowest hail size, average humidity, highest humidity, lowest humidity, average ice accumulation, average ice accumulation liquid water equivalent, highest ice accumulation liquid water equivalent, lowest ice accumulation liquid water equivalent, total ice accumulation liquid water equivalent, highest ice accumulation, lowest ice accumulation, total ice accumulation, moonrise, moonset, average precipitation probability, highest precipitation probability, lowest precipitation probability, average sea-level pressure, highest sea-level pressure, lowest sea-level pressure, average surface pressure, highest surface pressure, lowest surface pressure, average rain accumulation, average rain accumulation liquid water equivalent, highest rain accumulation liquid water equivalent, lowest rain accumulation liquid water equivalent, highest rain accumulation, lowest rain accumulation, total rain accumulation, average rain intensity, highest rain intensity, lowest rain intensity, average sleet accumulation, average sleet accumulation liquid water equivalent, highest sleet accumulation liquid water equivalent, lowest sleet accumulation liquid water equivalent, total sleet accumulation liquid water equivalent, highest sleet accumulation, lowest sleet accumulation, average sleet intensity, highest sleet intensity, lowest sleet intensity, average snow accumulation, average snow accumulation liquid water equivalent, highest snow accumulation liquid water equivalent, lowest snow accumulation liquid water equivalent, total snow accumulation liquid water equivalent, highest snow accumulation, lowest snow accumulation, total snow accumulation, average snow depth, highest snow depth, lowest snow depth, total snow depth, average snow intensity, highest snow intensity, lowest snow intensity, sunrise, sunset, average feels-like temperature, highest feels-like temperature, lowest feels-like temperature, average temperature, highest temperature, lowest temperature, average UV health concern, highest UV health concern, lowest UV health concern, average UV index, highest UV index, lowest UV index, average visibility, highest visibility, lowest visibility, highest conditions, lowest conditions, average wind direction, average wind gusts, highest wind gusts, lowest wind gusts, average wind speed, highest wind speed, lowest wind speed

## Tomorrow.io's plans (2)

- [Tomorrow.io, free](https://datacircle.dev/weather-forecast-apis/tomorrow-io/free/llms.txt): $0.00 per 1,000, 100% complete
- [Tomorrow.io, contact us](https://datacircle.dev/weather-forecast-apis/tomorrow-io/contact-us/llms.txt): 100% complete

## Tomorrow.io's calls for this API (1)

- `GET /v4/weather/forecast`: [Tomorrow.io, free](https://datacircle.dev/weather-forecast-apis/tomorrow-io/free/llms.txt)

## Tomorrow.io's APIs (3)

- [Tomorrow.io: current weather API pricing, 2 plans](https://datacircle.dev/current-weather-apis/tomorrow-io/free/llms.txt)
- [Tomorrow.io: weather forecast API pricing, 2 plans](https://datacircle.dev/weather-forecast-apis/tomorrow-io/free/llms.txt)
- [Tomorrow.io: air quality API pricing, 1 plan](https://datacircle.dev/air-quality-apis/tomorrow-io/contact-us/llms.txt)

## Tomorrow.io: weather forecast API alternatives

- [Weatherbit, free, GET /v2.0/forecast/daily](https://datacircle.dev/weather-forecast-apis/weatherbit/free-get-v2-0-forecast-daily/llms.txt): $0.00 per 1,000, 100% complete, live
- [WeatherAPI.com, free](https://datacircle.dev/weather-forecast-apis/weatherapi-com/free/llms.txt): $0.00 per 1,000, 100% complete
- [MET Norway, free, GET /weatherapi/locationforecast/2.0/compact](https://datacircle.dev/weather-forecast-apis/met-norway/free-get-weatherapi-locationforecast-2-0-compact/llms.txt): $0.00 per 1,000, 83% complete, 6 hours
- [Visual Crossing, free](https://datacircle.dev/weather-forecast-apis/visual-crossing/free/llms.txt): $0.00 per 1,000, 100% complete
- [Stormglass, free](https://datacircle.dev/weather-forecast-apis/stormglass/free/llms.txt): $0.00 per 1,000, 83% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-30.

- https://docs.tomorrow.io/reference/rate-limiting
- https://docs.tomorrow.io/reference/weather-forecast
- https://www.tomorrow.io/faq/weather-api/how-can-i-monitor-my-weather-api-usage
- https://www.tomorrow.io/terms-of-service/
- https://www.tomorrow.io/weather-api/