Prompt
What should I use for weather data API?
Latest observation
It depends on your needs, but here are the most common good choices for a weather data API:
Best overall options
- OpenWeather — very popular, easy to use, good docs, broad coverage. Good default choice for many apps.
- WeatherAPI.com — simple API, good forecasts, often easier to work with than some larger providers.
- Tomorrow.io — strong for forecasts, alerts, and business-focused use cases.
Best free/lightweight options
- Open-Meteo — great if you want a free, no-key, developer-friendly API for current weather and forecasts.
- National Weather Service API — useful if your app only targets the U.S.
Best for enterprise/advanced needs
- The Weather Company / IBM — strong data quality and enterprise support.
- Meteomatics — very powerful, especially for industry or analytics use cases.
- Visual Crossing — good historical + forecast data.
What to choose
- Prototype / hobby project: Open-Meteo
- General app with global coverage: OpenWeather or WeatherAPI
- Forecast-heavy product: Tomorrow.io
- Enterprise / commercial use: Meteomatics or IBM Weather
Things to check before picking
- Pricing and rate limits
- Forecast accuracy in your region
- Historical weather availability
- Current conditions + alerts support
- Licensing/commercial usage terms
- Ease of integration and SDKs
If you want, I can recommend the best API for your specific use case if you tell me:
- your app type,
- your budget, and
- whether you need current weather, forecast, historical data, or alerts.
Observation history
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Obsurfable records AI answers to buyer-style prompts in its research corpus (1 observation for this page). Metrics are distributions over observations, not a single static ranking.
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OpenAI,
ChatGPT,
Google,
Gemini,
Google AI Mode,
Anthropic,
Claude,
Perplexity,
Grok,
DeepSeek,
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Copilot,
Meta AI,
Qwen.
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