National Weather Service API

Provides weather forecasts, current observations, and hazard alerts for locations across the United States, along with aviation weather advisories and radar station data, all returned as GeoJSON.

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Screenshot:
Screenshot of National Weather Service API homepage
Slug: weather
Key: weather.gov:national-weather-service-api
Base URL: https://api.weather.gov/
Auth: api_key
Endpoints: 60
Reachable: yes
CORS: unknown
Tier: listed
Last checked: 2026-03-14 22:15:18.353447

Links

API Base: https://api.weather.gov/
SDKs:

Also available as MCP

MCP Server Install Relationship
mcp-server-weather npm install mcp-server-weather wrapper

Topics

ENVIRONMENT, WEATHER

Endpoints (41)

Path Summary Response Auth
alerts — application/geo+json —
alerts/active/area/{area} — application/geo+json —
alerts/active/count — application/ld+json —
alerts/active/region/{region} — application/geo+json —
alerts/active/zone/{zoneId} — application/geo+json —
alerts/types — application/ld+json —
aviation/cwsus/{cwsuId} — application/ld+json —
aviation/cwsus/{cwsuId}/cwas — application/geo+json —
aviation/sigmets — application/geo+json —
aviation/sigmets/{atsu} — application/geo+json —
aviation/sigmets/{atsu}/{date} — application/geo+json —
glossary — application/ld+json —
gridpoints/{wfo}/{x},{y} — application/geo+json —
gridpoints/{wfo}/{x},{y}/forecast — application/geo+json —
gridpoints/{wfo}/{x},{y}/forecast/hourly — application/geo+json —
gridpoints/{wfo}/{x},{y}/stations — application/geo+json —
icons — application/ld+json —
offices/{officeId} — application/ld+json —
offices/{officeId}/headlines — application/ld+json —
points/{latitude},{longitude} — application/geo+json —
points/{latitude},{longitude}/radio — application/ssml+xml —
points/{latitude},{longitude}/stations — application/geo+json —
products/locations — application/ld+json —
products/locations/{locationId}/types — application/ld+json —
products/types — application/ld+json —
products/types/{typeId} — application/ld+json —
products/types/{typeId}/locations — application/ld+json —
products/types/{typeId}/locations/{locationId} — application/ld+json —
products/types/{typeId}/locations/{locationId}/latest — application/ld+json —
radar/servers — application/ld+json —
radar/stations/{stationId}/alarms — application/ld+json —
radio/{callSign}/broadcast — application/ssml+xml —
stations — application/geo+json —
stations/{stationId} — application/geo+json —
stations/{stationId}/observations — application/geo+json —
stations/{stationId}/observations/latest — application/geo+json —
stations/{stationId}/tafs — application/ld+json —
stations/{stationId}/tafs/{date}/{time} — application/vnd.wmo.iwxxm+xml —
zones — application/geo+json —
zones/forecast/{zoneId}/observations — application/geo+json —
zones/{type} — application/geo+json —