Best Weather Services MCP servers for AI agents.

Two upstream sources power most of the category. Weather MCP Server builds on the Open-Meteo API for forecasts, air quality, and timezone utilities — free upstream, no API key, which is why it's a popular default. Weather Data MCP Server combines NOAA and Open-Meteo and goes considerably wider: forecasts, alerts, air quality, marine conditions, radar imagery, and lightning from one server.

Which upstream matters. NOAA is authoritative for the US with official alerts and warnings; Open-Meteo is global, free, and model-aggregated. A server that exposes both covers the 'authoritative where available, global everywhere' need.

Where this category outgrows the tutorials is the specialist cluster. NHC MCP Server wraps the National Hurricane Center — storm tracks, forecast advisories, watches and warnings, plus HURDAT2 historical data. A family of NOAA model servers covers the ocean: NOAA OFS MCP Server for regional ocean forecasts (water level, temperature, salinity), NOAA STOFS MCP Server for storm surge with observation validation, and NOAA WW3 MCP Server for WAVEWATCH III wave forecasts alongside live NDBC buoy observations.

If your agent routes ships, schedules coastal work, or monitors hurricane risk, these are purpose-built tools — not a general forecast API squinted at sideways.

A second long tail wraps national agencies directly: vedurstofa-mcp serves Icelandic weather, warnings, and earthquake data from vedur.is, and mcp-server-taiwan-weather covers Taiwan's Central Weather Administration. These matter because global APIs are often weakest exactly where local agencies are strongest — alerts, in particular, rarely travel well across providers.

Then there's applied weather: agrobr folds Brazilian climate data into a broader agricultural dataset (prices, crops, deforestation), and leafengines pairs forecasts with soil analysis and crop recommendations. Weather as an input to a domain decision, not an end in itself.

Pick by region first (local agency beats global aggregate for warnings), then by specialty (marine, severe weather, agriculture), then by upstream terms — free APIs like Open-Meteo have fair-use limits that an agent fleet can exceed faster than you'd think. Most servers here are open source and free to self-host; what costs money is hosted reliability and heavier data like radar tiles. Maintainers offering that can claim their Loomal listing and price lookups via x402 — per-call USDC on Base from $0.01, paid by the agent automatically. Each card below links to the live marketplace listing.