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-weather 1.0.1