get_forecast
Retrieve weather forecast data for any location by providing its latitude and longitude coordinates.
Instructions
Get weather forecast for a location. Args: latitude: Latitude of the location longitude: Longitude of the location
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| latitude | Yes | ||
| longitude | Yes |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| result | Yes |
Implementation Reference
- tools/get_forcast.py:16-39 (handler)The handler function that implements the logic for the 'get_forecast' tool. It uses hardcoded weather data for a specific location and formats it into a string using the format_forecast helper.
def get_forecast(latitude: float, longitude: float) -> str: """Get weather forecast for a location. Args: latitude: Latitude of the location longitude: Longitude of the location """ forecasts = [ { "name": "This Afternoon", "temperature": "68°F", "wind": "18 mph WSW", "forecast": "Sunny. High near 68, with temperatures falling to around 66 in the afternoon. West southwest wind around 18 mph, with gusts as high as 23 mph." }, { "name": "Tonight", "temperature": "55°F", "wind": "8 to 17 mph WSW", "forecast": "Mostly clear, with a low around 55. West southwest wind 8 to 17 mph, with gusts as high as 22 mph." }, ] # Hardcode replace it with you api , you can call https://api.weather.gov ... return format_forecast(forecasts) - tools/get_forcast.py:15-16 (registration)The @mcp.tool() decorator registers the get_forecast function as an MCP tool within the register function.
@mcp.tool() def get_forecast(latitude: float, longitude: float) -> str: - weather.py:2-7 (registration)Imports the get_forcast module containing the tool definitions and calls its register(mcp) function to register the tools, including get_forecast, with the MCP server instance.
from tools import get_forcast # Initialize FastMCP server mcp = FastMCP("weather") get_forcast.register(mcp) - tools/get_forcast.py:43-50 (helper)Helper function used by get_forecast to format the list of forecast dictionaries into a human-readable string.
def format_forecast(forecasts: List[Dict]) -> str: """ Format a list of forecast dictionaries into a readable string. """ return "\n---\n".join( f"{f['name']}:\nTemperature: {f['temperature']}\nWind: {f['wind']}\nForecast: {f['forecast']}" for f in forecasts )