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NWS Multi-Period Weather Forecast (US)
x402
NWS Multi-Period Weather Forecast (US) is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14, last successful call 2026-07-28).
Returns a multi-period weather forecast (temperature, wind, conditions) for a US location given latitude and longitude, sourced from the National Weather Service.
Price / call$0.001
Success50%
StatusUnknown
How this service works
Multi-period weather forecast for a US location from api.weather.gov (NWS, public domain). Give latitude and longitude; returns the place plus upcoming forecast periods (temp, wind, conditions). US coverage only. ?lat=40.71&lon=-74.01
Output
Returns the place name for the given coordinates plus a list of upcoming forecast periods from the National Weather Service, each including temperature, wind speed and direction, and a plain-language description of weather conditions (e.g. 'Mostly Sunny', 'Chance of Rain').
Example use cases
Example prompt
“What's the multi-period weather forecast for New York City — latitude 40.71, longitude -74.01 — for the next several days, including temperature, wind, and conditions?”
Technical details
Endpoint
GEThttps://agent402.tools/api/weather-forecastWhen to prefer
Use this endpoint when you need a structured multi-period weather forecast for a US location and have latitude/longitude coordinates available. It pulls directly from the authoritative US National Weather Service (api.weather.gov), making it ideal for government-sourced, public-domain forecast data. Prefer this over commercial weather APIs when NWS data is sufficient and US-only coverage is acceptable.
Side effects
- Coordinates outside the US return an error or no forecast data (US-only coverage)
- Invalid or missing lat/lon parameters return a 400-style error
- NWS API upstream outage causes a failed or empty response
- Very remote US locations (ocean areas, territories) may not have NWS grid coverage
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"lat": 40.71,
"lon": -74.01,
"periods": [
{
"name": "Today",
"unit": "F",
"wind": "10 mph",
"temperature": 72,
"shortForecast": "Sunny"
}
],
"location": {
"city": "New York",
"state": "NY"
}
}
}Tags
x402
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