mcp-weather

Global weather intelligence MCP server — current conditions, forecasts up to 16 days, historical data, air quality, and marine conditions for any location on Earth. 7 tools powered by Open-Meteo (free, no API key, no rate limits).

Installation

cargo install mcp-weather

Quick Start

mcp-weather  # Zero configuration, works immediately

MCP Client Configuration

Claude Desktop / Cursor

{
  "mcpServers": {
    "weather": {
      "command": "mcp-weather"
    }
  }
}

No API keys. No environment variables. No rate limits.

Tools (7)

| Tool | Description | |------|-------------| | get_current_weather | Temperature, wind, humidity, precipitation right now | | get_forecast | Daily forecast up to 16 days (max/min temp, rain, wind) | | get_hourly_forecast | Hour-by-hour for next 48 hours | | get_historical_weather | Past weather for any date range | | get_air_quality | AQI, PM2.5, PM10, ozone, NO2, CO levels | | get_marine_conditions | Wave height, period, direction, ocean currents | | geocode_location | City name → latitude/longitude coordinates |

Usage Examples

"What's the weather in Nairobi?"

→ geocode_location(name="Nairobi")
  → lat: -1.29, lon: 36.82

→ get_current_weather(latitude=-1.29, longitude=36.82)
  → 16.8°C, wind 0.9 km/h, humidity 81%

"Will it rain in London this week?"

→ get_forecast(latitude=51.51, longitude=-0.13, days=7)
  → Daily: max temps, min temps, precipitation_sum per day

"Air quality in Delhi"

→ get_air_quality(latitude=28.61, longitude=77.21)
  → AQI: 156, PM2.5: 68.2, PM10: 112.4

"Wave conditions for surfing in Cape Town"

→ get_marine_conditions(latitude=-33.92, longitude=18.42)
  → Wave height: 2.1m, period: 12s, direction: SW

"What was the weather on my birthday last year?"

→ get_historical_weather(latitude=40.71, longitude=-74.01, start_date="2025-03-15", end_date="2025-03-15")
  → Max: 12°C, Min: 4°C, Precipitation: 0mm

Coordinates for Common Cities

| City | Latitude | Longitude | |------|----------|-----------| | Nairobi | -1.29 | 36.82 | | London | 51.51 | -0.13 | | New York | 40.71 | -74.01 | | Dubai | 25.20 | 55.27 | | Tokyo | 35.68 | 139.69 | | Sydney | -33.87 | 151.21 | | Lagos | 6.45 | 3.40 | | Mumbai | 19.08 | 72.88 |

Use geocode_location to find coordinates for any city.

Data Source

All data from Open-Meteo — a free, open-source weather API:

No API key required
No rate limits for reasonable use
Global coverage (any lat/lon on Earth)
Updates every 15 minutes (current), hourly (forecast)
Historical data back to 1940

License

Apache-2.0

MCP Servers