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Simple Weather MCP Server

by hideya

WeatherWeatherNode.jsServerAPI

A Node.js server implementing the Model Context Protocol (MCP) for accessing weather information in the US. It provides tools to retrieve weather alerts and forecasts.

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Last updated: N/A

Simple Weather MCP Server example from Quickstart
License: MIT

License: MIT
npm version

npm version

Node.js server implementing Model Context Protocol (MCP) for accessing weather information in the US.

This is an example explained in MCP Quickstart.

It has been hosted as an npm package for convenient use with npx.

Usage with Claude Desktop

Merge the following JSON fragment into your claude_desktop_config.json. Please refer to the "Testing your server with Claude for Desktop" section of MCP Quickstart for details.

# MacOS/Linux
code ~/Library/Application\ Support/Claude/claude_desktop_config.json

# Windows
code $env:AppData\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "weather": {
      "command": "npx",
        "args": [
            "-y",
            "@h1deya/mcp-server-weather"
        ],
    }
  }
}

Tools

  • get-alerts
    • Get weather alerts for a US state.
    • Input: state (string): Two-letter US state code (e.g. CA, NY)
  • get-forecast
    • Get weather forecast for a location in the US
    • Inputs:
      • latitude (number): Latitude of the location
      • longitude (number): Longitude of the location

Example Queries

  • Tomorrow's weather in Palo Alto?
  • Any weather alerts in California?

Original Author and License

This example is based on the code explained in MCP Quickstart (github), whose license is CC-BY-4.0. The completed code examples are also hosted in this repo, whose license is MIT (Copyright (c) 2025 Model Context Protocol). So I've chosen the MIT license for this repo.