{"entry":{"slug":"weather-gov-api","name":"National Weather Service API","category":"api","summary":"Official US government forecasts, hourly forecasts, alerts and observations, no API key required.","description":"The US National Weather Service exposes forecasts, hourly forecasts, active alerts, radar stations and station observations as GeoJSON. No key and no account: you look up a point with latitude/longitude, then follow the returned forecast URL. A descriptive User-Agent is requested by their terms. Complements Open-Meteo and OpenWeatherMap with authoritative US data and severe-weather alerts.","auth_mode":"none","endpoint":"https://api.weather.gov/points/38.8894,-77.0352","docs_url":"https://www.weather.gov/documentation/services-web-api","tags":["weather","forecast","alerts","geo","government"],"capabilities":["get a weather forecast","get hourly forecast","get severe weather alerts","get station observations"],"auth_params":[],"input_format":"HTTP GET with latitude,longitude in the path; send a descriptive User-Agent header","output_format":"GeoJSON","rate_limit":"No published hard limit; generous but throttled per client. Cache responses and send a real User-Agent, unattended hammering gets blocked.","pricing":"Free, public domain data.","invocation_example":"curl -s -H \"User-Agent: my-agent (contact@example.com)\" https://api.weather.gov/points/38.8894,-77.0352","verified":false,"verified_at":null,"featured":false,"checks_total":1,"checks_ok":1,"avg_latency_ms":137,"health_ok":true,"health_status_code":200,"health_checked_at":"2026-09-20T11:58:06.162+00:00","health_latency_ms":137,"probe_url":"https://www.weather.gov/documentation/services-web-api"}}