llm-tools/mcps/open_meteo_mcp/README.md

open-meteo-mcp

An MCP server for global weather data via the Open-Meteo API. No API key required.

Tools

get_current_weather

Returns current conditions for a given latitude/longitude:

• Temperature and "feels like"
• Humidity, wind speed/direction/gusts
• Precipitation, cloud cover, pressure
• WMO weather code decoded to plain English

get_forecast

Returns a multi-day forecast (1-16 days) for a given latitude/longitude:

• Daily high/low temperatures
• Precipitation totals and probability
• Wind speed, gusts, and dominant direction
• Sunrise/sunset times
• Supports celsius or fahrenheit

Setup

Requires Python 3.10+ and Poetry.

cd /data/Projects/open_meteo_mcp
poetry install

Usage

Stdio (for Claude Code)

.venv/bin/open-meteo-mcp-stdio

Add to ~/.claude/settings.json:

"open_meteo": {
  "type": "stdio",
  "command": "/data/Projects/open_meteo_mcp/.venv/bin/open-meteo-mcp-stdio",
  "args": [],
  "env": {}
}

Streamable HTTP

.venv/bin/open-meteo-mcp

Starts on http://127.0.0.1:8000/mcp by default.

Data Source

All weather data comes from Open-Meteo, which aggregates national weather services worldwide. Free for non-commercial use.