plugmyagent

Tomorrow.io

Weather Free key (no card)

AuthenticationFree key (no card)
Rate limit500 calls per day, 25 per hour, 3 per second on the free plan.

Documentation: support.tomorrow.io ยท Checked Sep 13, 2026

About

Tomorrow.io is a modern weather company that sells data to big apps. But it also keeps a genuinely useful free tier. You get current conditions, forecasts, and air quality for any location, all in a clean, well-documented API. The company even has a public support site that spells out exactly what the free plan allows.

Details

Free to start. You may need a free key, but no credit card.

Auth: Free key (no card)

Rate limit: 500 calls per day, 25 per hour, 3 per second on the free plan.

Verified: 2026-09-13

Best for: developer business personal

Read the docs Back to catalog

Setup

  1. Create a free Tomorrow.io account and generate an API key.
  2. Pick an endpoint: /v4/weather/realtime for right now, /v4/weather/forecast for the future.
  3. Pass your location as coordinates or a place name with the apikey parameter.
  4. Watch your usage. 500 calls a day is plenty if you cache results instead of re-asking.
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