Weather Forecast MCP Server

Weather Forecast MCP Server

A Model Context Protocol (MCP) server that provides weather information and alerts for US states and UK cities/towns using the National Weather Service (NWS) API. This server enables AI assistants to fetch current weather forecasts and alerts through a standardized interface.

Features

• Weather Alerts: Get active weather alerts for any US state or UK city/town
• Weather Forecasts: Retrieve detailed weather forecasts using latitude and longitude coordinates
• API Key Required: Requires an API key for UK weather services
• Real-time Data: Access current weather information directly from official government sources
• MCP Compatible: Works with any MCP-compatible AI assistant or client

Installation

From Source

Clone the repository and install dependencies:

git clone https://github.com/MKhan997733/mcp-server-weather-forecast.git
cd mcp-server-weather-forecast
npm install
npm run build

Configuration

Claude Desktop

Add the following configuration to your claude_desktop_config.json file:

{
  "mcpServers": {
    "weather": {
      "command": "npx",
      "args": ["mcp-server-weather-forecast"],
      "env": {
        "API_KEY": "your-api-key-here"
      }
    }
  }
}

Cursor IDE

Add the server to your MCP settings in Cursor:

{
  "mcpServers": {
    "weather": {
      "command": "npx",
      "args": ["mcp-server-weather-forecast"],
      "disabled": false,
      "autoApprove": [],
      "env": {
        "API_KEY": "your-api-key-here"
      }
    }
  }
}

Environment Variables

The following environment variable is required:

• API_KEY: Your weather API key for accessing weather services

You can obtain an API key from OpenWeather

Usage

Once configured, you can ask your AI assistant weather-related questions such as:

• "What are the current weather alerts for California?"
• "Get me the weather forecast for New York City"
• "Are there any severe weather warnings in Texas?"
• "What's the forecast for coordinates 40.7128, -74.0060?"

Available Tools

get-alerts

Get weather alerts for a specific US state.

Parameters:

• state (string, required): Two-letter US state code (e.g., "CA", "NY", "TX")

Example:

{
  "state": "CA"
}

get-forecast

Get weather forecast for a specific location using coordinates.

Parameters:

• latitude (number, required): Latitude of the location (-90 to 90)
• longitude (number, required): Longitude of the location (-180 to 180)

Example:

{
  "latitude": 37.7749,
  "longitude": -122.4194
}

current-weather-uk

Get current weather forecast for UK cities and towns.

Parameters:

• city (string, required): Name of the UK city or town

Example:

{
  "city": "London"
}

API Details

This server uses the following APIs:

• National Weather Service API: For US weather alerts and forecasts
• OpenWeather API: For UK weather information and additional weather data

API Key: An API key is required for accessing weather services. You can obtain one from OpenWeather

Development

Prerequisites

• Node.js 18+
• npm or yarn

Running in Development

# Install dependencies
npm install

# Build the project
npm run build

# Run the server with API key
API_KEY=your-api-key-here node <absolute-path>/build/index.js