WeatherAPI.com free weather API and weather data and Geolocation API (JSON and XML) for hourly, daily and 15 min interval weather, historical data, bulk request, astronomy, sports and much more.

Open-Meteo partners with national weather services to bring you open data with high resolution, ranging from 1 to 11 kilometres. Our powerful APIs intelligently select the most suitable weather models for your specific location, ensuring accurate and reliable forecasts.

February 18, 2026 - Features: Accurate hourly forecasts, real-time alerts, aviation weather, raster images, useful lifestyle data on pollen, air quality, flu outbreaks, driving difficulty, mosquito activity, and more. Parameters: Temperature, precipitation, humidity, cloud cover, visibility, atmospheric pressure, UV index, dew point, etc. Free tier: 50,000 API calls daily and 100 API calls per minute for internal development and nonproduction use.

January 13, 2026 - 09/06/2023 / Meteomatics offers the best weather API for Python, thanks to its exceptional Python connector, available to all users for free. ... We provide the most accurate weather data for any location, at any time, to improve your business.

August 13, 2025 - Combining satellite data and AI/ML, Tomorrow offers the most accurate weather data for forecasting. Access the weather data you need quickly with our easy-to-use API; benefit from a simple, intuitive interface, comprehensive documentation, and ...

August 19, 2025 - The all-around best Weather API for 2025 is Tomorrow.io’s Weather API, offering 80+ data layers and a top-rated interface. Accurate, actionable weather forecasts available through a weather API are vital to the success of many organizations.

Discover weatherstack, the best free weather API providing real-time, historical, and forecast weather data worldwide. Start using our weather REST API today.

August 24, 2023 - The best weather api that I have ever used is easily Weatherbit. They have a free plan and a trial version with a lot of features. They’re the only API that actually publishes forecast metrics - the rest just make unverified claims about forecast accuracy. They’re also one of the top ranked providers on Forecast Advisor. In my area atleast they are actually the most accurate, but that can vary from what I’ve found (I have found them to be top 3 for most areas).

When we switched to Meteomatics, precipitation forecasts became incredibly accurate, saving me two-thirds of my time because I no longer had to deal with client issues. ... The Meteomatics Weather API stood out as the most comprehensive, flexible ...

May 15, 2025 - A single API query returns historical ... Hourly and Daily Forecasts, and historical records for the entire globe · Our Weather Engine finds the most accurate weather reports calculated based on over 100,000 weather stations, ...

Our Weather API leverages advanced machine learning techniques to correct biases in forecast models, reducing forecast error by up to 50% in some areas when compared to high resolution regional weather models. Our forecasts consistently outperform competitors, including the US National Weather Service. For live performance comparisons, visit our forecast verification page. The most accurate collection of complete, and gap-free historical weather observations on the web.

October 1, 2025 - Some of the most accurate solutions include Visual Crossing, OpenWeatherMap, and Meteomatics. APIs that use more data sources, including government and personal weather station data, are typically more precise.

Start with 1,000 free API calls per day. Scale with pay-as-you-call pricing. ... Real-time weather data for any location on Earth, delivered with high accuracy and low latency.

Top Weather APIs

Answer (1 of 2): I have been using Climacell and Aeris API for some time now and I still can’t choose one out of the two. They are both pretty accurate and serve all of my purposes with equal efficiency.

Transparently documented accuracy levels for weather data · We use more than 30 different weather simulation models · Real-time satellite and radar animations for any place worldwide · Trusted by more than 72 million website users - see what they say · First choice of 3000 business customers from more than 100 countries · Operating more than 100.000 weather stations in real time · More than 99.99% availability of our Weather API in the last 5 years

Most accurate weather API with AI-powered data fusion from 10+ sources. Get reliable weather forecasts, real-time data, and location-specific intelligence for developers.

WeatherNext 2 is our most accurate AI weather forecasting technology.

Foreca Weather API includes both point forecasts and weather maps in one package. Global coverage - weather forecasts for every coordinate in the world. Foreca's high forecast accuracy provided in an easy-to-use format.

The Forecast API uses nowcasting and the meteoblue Learning MultiModel (mLM) to deliver up to 14 days of hourly forecasts at maximum accuracy. You can assemble your own weather forecast API calls by combining pre-defined packages of weather variables. We would be pleased to support you with a free API trial access upon request. ... "It has always been our aim to offer a uniquely broad range of data. Thus we offer more than 30 different weather simulation models." The Basic data package serves general purposes and contains the most common weather variables.