Weather MCP Server

An MCP (Model Context Protocol) server that gives Claude real-time weather data from the US National Weather Service API — no API key needed.

What it does

• get_alerts — fetches active weather alerts for any US state

• get_forecast — fetches a 5-period forecast for any lat/long location

Related MCP server: Weather MCP Server

Requirements

• Python 3.12+

• uv

Setup

Clone the repo and install dependencies:

git clone https://github.com/YOUR_USERNAME/weather-mcp-server
cd weather-mcp-server
uv venv --python 3.12
source .venv/bin/activate
uv add "mcp[cli]" httpx

Connect to Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "weather": {
      "command": "uv",
      "args": ["--directory", "/path/to/weather-mcp-server", "run", "weather.py"]
    }
  }
}

Restart Claude Desktop. Look for the hammer icon in the chat input.

Built with

• MCP Python SDK (https://github.com/modelcontextprotocol/python-sdk)

• National Weather Service API (https://api.weather.gov)