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US National Weather Service Forecast (Vextorium)
x402
US National Weather Service Forecast (Vextorium) is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-20).
Returns the official NWS 7-day or hourly weather forecast for any US coordinate pair, including temperature in °F and °C, wind, precipitation probability, and active weather alerts.
Price / call$0.004
Success—
StatusUnknown
How this service works
Official US National Weather Service forecast for coordinates in the United States: next 7 days or hourly, temperature (F and C), wind, chance of rain, plus active weather alerts.
Output
Returns a JSON object with the location name, timezone, an array of forecast periods (each with start time, period name, temperature in °F and °C, wind description, precipitation probability percentage, short summary, and detailed text), plus an array of any active weather alerts for that location.
Example use cases
Outdoor event planning weather check
“I'm planning an outdoor wedding in Central Park on Saturday — can you pull the official NWS 7-day forecast for lat 40.7851, lon -73.9683 and tell me if there's any rain chance or severe weather alerts I should worry about?”
Hourly forecast for a travel itinerary
“Get me an hourly weather breakdown for lat 34.0522, lon -118.2437 in Los Angeles — I need temperature in Fahrenheit and Celsius plus wind conditions hour by hour.”
Farming or agriculture weather alert monitoring
“Check the official US National Weather Service forecast for my farm at coordinates 41.8781, -87.6298 — is there any precipitation expected in the next 7 days, and are there any active weather alerts I should know about?”
Technical details
Endpoint
POSThttps://api.vextorium.com/tiempo-eeuu-pago?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need official US government NWS forecast data for a specific US coordinate, especially when authoritative accuracy, precipitation probability, wind details, and weather alerts are needed. Prefer over general weather APIs when the source credibility (NWS/NOAA) matters or when you need both °F and °C without conversion. Not suitable for locations outside the United States.
Side effects
- Coordinates outside the United States return no data or an error (NWS only covers US territory)
- Invalid or out-of-range latitude/longitude values return a validation error
- NWS upstream API downtime may result in a service unavailable response
- Missing required lat or lon fields returns a schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| lat | number | |
| lon | number | |
| horas | boolean | Hourly forecast |
Output
Schema · Response
{
"type": "json",
"example": {
"lugar": "New York, NY",
"avisos": [],
"fuente": "National Weather Service de EE. UU. (dominio público)",
"previsiones": [
{
"inicio": "2026-10-02T10:00:00-04:00",
"nombre": "Today",
"unidad": "F",
"viento": "5 to 10 mph SW",
"detalle": "A chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 83. Southwest wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.",
"resumen": "Mostly Sunny then Chance Showers And Thunderstorms",
"temperatura": 83,
"temperatura_c": 28.3,
"prob_lluvia_pct": 35
},
{
"inicio": "2026-10-02T18:00:00-04:00",
"nombre": "Tonight",
"unidad": "F",
"viento": "9 to 14 mph NW",
"detalle": "A chance of showers and thunderstorms before 2am. Mostly cloudy. Low around 63, with temperatures rising to around 65 overnight. Northwest wind 9 to 14 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.",
"resumen": "Chance Showers And Thunderstorms",
"temperatura": 63,
"temperatura_c": 17.2,
"prob_lluvia_pct": 52
}
],
"zona_horaria": "America/New_York"
}
}Tags
x402
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