This MCP server provides real-time weather information for Claude Desktop using the OpenWeatherMap API. It enables Claude to access current conditions, forecasts, historical data, air quality, and weather alerts for any location worldwide through a simple conversational interface.
pip install -r requirements.txt
Get an API key from OpenWeatherMap
Set up environment variables for your API key:
.env file in the project directoryOPENWEATHER_API_KEY=your_openweathermap_api_key
Update main.py to use the environment variable:
# Add these imports at the top
import os
from dotenv import load_dotenv
# Load environment variables
load_dotenv()
# Replace the API_KEY line with
API_KEY = os.getenv("OPENWEATHER_API_KEY")
{
"mcpServers": {
"weather-mcp": {
"command": "py",
"args": ["-3.13", "C:\\Path\\To\\Your\\Weather-MCP-ClaudeDesktop\\main.py"]
}
}
}
main.py filepy -3.13 main.py
The get_current_weather tool provides real-time weather conditions:
{
"location": {
"name": "New York",
"country": "US",
"lat": 40.7128,
"lon": -74.006
},
"temperature": {
"current": 25.6,
"feels_like": 26.2,
"min": 23.4,
"max": 27.8
},
"weather_condition": {
"main": "Clear",
"description": "clear sky",
"icon": "01d"
},
"wind": {
"speed": 3.6,
"deg": 220
},
"clouds": 5,
"humidity": 65,
"pressure": 1015,
"visibility": 10000,
"sunrise": "2025-03-16T06:12:34",
"sunset": "2025-03-16T18:04:23",
"timestamp": "2025-03-16T14:30:00"
}
The get_weather_forecast tool provides forecasts for up to 5 days:
{
"location": {
"name": "London",
"country": "GB",
"lat": 51.5074,
"lon": -0.1278
},
"forecast": [
{
"datetime": "2025-03-16T15:00:00",
"temperature": {
"temp": 18.2,
"feels_like": 17.8,
"min": 17.5,
"max": 19.1
},
"weather_condition": {
"main": "Rain",
"description": "light rain",
"icon": "10d"
},
"wind": {
"speed": 4.2,
"deg": 180
},
"clouds": 75,
"humidity": 82,
"pressure": 1010,
"visibility": 8000,
"pop": 0.4
}
// ... more forecast items
],
"days": 5
}
The get_air_quality tool provides pollution data:
{
"location": {
"name": "Beijing",
"country": "CN",
"lat": 39.9042,
"lon": 116.4074
},
"air_quality_index": 3,
"air_quality_level": "Moderate",
"components": {
"co": 250.34,
"no": 0.5,
"no2": 15.2,
"o3": 140.8,
"so2": 5.1,
"pm2_5": 8.2,
"pm10": 12.3,
"nh3": 0.7
},
"timestamp": "2025-03-16T14:30:00"
}
The get_historical_weather tool provides data from the last 5 days:
{
"location": {
"name": "Paris",
"country": "FR",
"lat": 48.8566,
"lon": 2.3522
},
"date": "2025-03-14",
"temperature": {
"temp": 20.3,
"feels_like": 19.8
},
"weather_condition": {
"main": "Clouds",
"description": "scattered clouds",
"icon": "03d"
},
"wind": {
"speed": 2.8,
"deg": 150
},
"clouds": 45,
"humidity": 60,
"pressure": 1012,
"visibility": 10000,
"sunrise": "2025-03-14T06:30:45",
"sunset": "2025-03-14T18:15:22",
"timestamp": "2025-03-14T12:00:00"
}
The search_location tool helps find places by name:
{
"results": [
{
"name": "Tokyo",
"state": "",
"country": "JP",
"lat": 35.6762,
"lon": 139.6503
},
{
"name": "Tokyo",
"state": "Tokyo",
"country": "JP",
"lat": 35.6895,
"lon": 139.6917
}
// ... more results
]
}
The get_weather_alerts tool provides warnings and advisories:
{
"location": {
"name": "Miami",
"country": "US",
"lat": 25.7617,
"lon": -80.1918
},
"alerts": [
{
"sender": "NWS Miami",
"event": "Heat Advisory",
"start": "2025-03-16T12:00:00",
"end": "2025-03-16T20:00:00",
"description": "Heat index values between 105 and 110 expected",
"tags": ["Extreme temperature value"]
}
// ... more alerts if any
],
"alert_count": 1
}
You can ask Claude natural language questions like:
If the server isn't working properly:
There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.
If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.
To add a global MCP server go to Cursor Settings > MCP and click "Add new global MCP server".
When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:
{
"mcpServers": {
"cursor-rules-mcp": {
"command": "npx",
"args": [
"-y",
"cursor-rules-mcp"
]
}
}
}
To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.
Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.
The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.
You can also explictly ask the agent to use the tool by mentioning the tool name and describing what the function does.