Weather MCP Server Powered by the Open-Meteo API

This MCP server interfaces with the Open-Meteo API and offers tools to fetch current weather conditions and weather forecasts for any location worldwide.

Requirements

• Claude.ai account (MCP support is available for all account types)
• Claude Desktop app, available for macOS and Windows
• uv:
  • macOS via Homebrew: brew install uv
  • Windows via WinGet: winget install --id=astral-sh.uv -e
• A code editor like Visual Studio Code

Installation

uv run

Development

Start the virtual environment

source .venv/bin/activate

NOTE: To stop the virtual environment:

deactivate

Run MCP server in dev mode with the MCP Inspector:

mcp dev server.py

Run MCP server in Claude Desktop

Open claude_desktop_config.json in an editor:

File location:

• MacOS / Linux: ~/Library/Application/Support/Claude/claude_desktop_config.json
• Windows: AppData\Claude\claude_desktop_config.json

Find the full path to uv:

• MacOS / Linux: which uv
• Windows: where uv

In claude_desktop_config.json:

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

Reboot Claude Desktop and use a prompt that will trigger your MCP.

Usage

In Claude Desktop:

• request current weather information for a specified location
• request a weather forecast for a specified location and time
• ask if it's going to rain tomorrow
• ask if you need to put on sunscreen if you're going for a walk later