MCP Weather Server
by shiragannavar
This project implements an MCP server designed to serve as a Claude tool, connecting to the U.S. National Weather Service (NWS) API. It provides real-time weather alerts and forecasts.
View on GitHub
Last updated: N/A
MCP Weather Server for Claude
This project implements an MCP server using the fastmcp interface, designed to serve as a Claude tool. It connects to the U.S. National Weather Service (NWS) API to provide real-time weather alerts and forecasts.
β¨ Features
- π Get Active Alerts: Retrieve current weather alerts by U.S. state.
- π€οΈ Get Forecast: Fetch detailed forecasts by latitude and longitude.
- β‘ Asynchronous & Fast: Built with
httpxandfastmcpfor high-performance async operations.
π§ Powered by Claude
This server is built to serve as a Claude-compatible external tool via the MCP protocol, using stdio transport.
π οΈ Code Overview
Main Components
FastMCP: Initializes the MCP server.make_nws_request(): A helper for calling the NWS API with retries and headers.get_alerts(state: str): Claude-accessible tool to get weather alerts for a given U.S. state.get_forecast(latitude: float, longitude: float): Claude-accessible tool to get the forecast for any lat/lon pair.
Example Tool Usage
await get_alerts("CA")
await get_forecast(37.7749, -122.4194)
π External API
National Weather Service API: https://weather.gov/documentation/services-web-api
π License
MIT License. Feel free to fork, modify, and use this server as a base for your own Claude tools.
βΈ»