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2s.io US Weather Forecast
x402
2s.io US Weather Forecast is a paid API for AI agents from 2s.io, paid per call via x402, $0.00144/call, status unknown (last checked 2026-09-14).
Returns the National Weather Service forecast (daily or hourly periods) for a given US latitude/longitude coordinate
Price / call$0.00144
Success—
StatusUnknown
How this service works
Official US weather forecast for a coordinate (US land + territories). Pass lat + lon. Returns the National Weather Service forecast as a list of periods — by default ~7 days of day/night periods; pass hourly=true for an hour-by-hour forecast. Each period gives the temperature + unit, wind speed/direction, chance of precipitation, and a short + detailed forecast, plus the resolved city/state and issuing office. Source: US National Weather Service (api.weather.gov), public domain. For active warnings use weather.alerts.
Output
A list of forecast periods (up to 14 day/night or 24 hourly) each containing: period name (e.g. 'Tonight'), temperature with unit, wind speed and direction, short forecast summary, detailed text forecast, and precipitation chance. Also includes the resolved city/state and the NWS issuing office.
Example use cases
Example prompt
“What's the 7-day weather forecast for Washington DC — lat 38.8951, lon -77.0364 — including temperature, wind, and chance of rain for each day and night period?”
Technical details
Endpoint
GEThttps://2s.io/api/weather/forecastWhen to prefer
Use this endpoint when you need official US government weather forecast data for a US location specified by latitude and longitude. Prefer this over commercial weather APIs when public-domain NWS accuracy and authority are required, or when cost per call matters. For weather alerts and warnings, use the companion weather.alerts endpoint instead.
Side effects
- Coordinates outside US land and territories return an error (NWS only covers US)
- Invalid or missing lat/lon parameters return a 400-level error
- NWS upstream API outage may cause 502/503 responses
- Coordinates in US waters without a forecast grid may fail
- Extreme lat/lon values (e.g. out of valid range) may return an error
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"lat": 38.8951,
"lon": -77.0364,
"limit": 7,
"hourly": false
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
{
"data": {
"ok": true,
"meta": {
"periods": 7,
"updated": null,
"location": "Washington, DC",
"forecastOffice": "LWX"
},
"items": [
{
"name": "",
"endTime": "2026-06-17T18:00:00-04:00",
"isDaytime": true,
"startTime": "2026-06-17T17:00:00-04:00",
"windSpeed": "9 mph",
"temperature": 87,
"shortForecast": "Scattered Rain Showers",
"windDirection": "SW",
"temperatureUnit": "F",
"detailedForecast": "",
"precipProbabilityPct": 10
},
{
"name": "",
"endTime": "2026-06-17T19:00:00-04:00",
"isDaytime": false,
"startTime": "2026-06-17T18:00:00-04:00",
"windSpeed": "9 mph",
"temperature": 87,
"shortForecast": "Partly Cloudy",
"windDirection": "S",
"temperatureUnit": "F",
"detailedForecast": "",
"precipProbabilityPct": 6
},
{
"name": "",
"endTime": "2026-06-17T20:00:00-04:00",
"isDaytime": false,
"startTime": "2026-06-17T19:00:00-04:00",
"windSpeed": "9 mph",
"temperature": 86,
"shortForecast": "Partly Cloudy",
"windDirection": "S",
"temperatureUnit": "F",
"detailedForecast": "",
"precipProbabilityPct": 1
},
{
"name": "",
"endTime": "2026-06-17T21:00:00-04:00",
"isDaytime": false,
"startTime": "2026-06-17T20:00:00-04:00",
"windSpeed": "6 mph",
"temperature": 85,
"shortForecast": "Partly Cloudy",
"windDirection": "S",
"temperatureUnit": "F",
"detailedForecast": "",
"precipProbabilityPct": 3
},
{
"name": "",
"endTime": "2026-06-17T22:00:00-04:00",
"isDaytime": false,
"startTime": "2026-06-17T21:00:00-04:00",
"windSpeed": "6 mph",
"temperature": 80,
"shortForecast": "Partly Cloudy",
"windDirection": "S",
"temperatureUnit": "F",
"detailedForecast": "",
"precipProbabilityPct": 2
},
{
"name": "",
"endTime": "2026-06-17T23:00:00-04:00",
"isDaytime": false,
"startTime": "2026-06-17T22:00:00-04:00",
"windSpeed": "6 mph",
"temperature": 78,
"shortForecast": "Partly Cloudy",
"windDirection": "S",
"temperatureUnit": "F",
"detailedForecast": "",
"precipProbabilityPct": 2
},
{
"name": "",
"endTime": "2026-06-18T00:00:00-04:00",
"isDaytime": false,
"startTime": "2026-06-17T23:00:00-04:00",
"windSpeed": "6 mph",
"temperature": 76,
"shortForecast": "Mostly Cloudy",
"windDirection": "S",
"temperatureUnit": "F",
"detailedForecast": "",
"precipProbabilityPct": 1
}
],
"total": 7,
"source": {
"url": "https://www.weather.gov/",
"license": "US Government work — public domain (17 U.S.C. §105).",
"provider": "US National Weather Service — api.weather.gov"
}
},
"meta": {
"cost": {
"usd": 0.00144,
"tier": 0
},
"caller": "x402",
"version": null,
"endpoint": "weather.forecast",
"settlement": {
"txHash": "0x6843fcb032009c028f60981a3635e3c8a05d85b75a839d7f1aacc62ae344833a",
"network": "eip155:8453",
"success": true
}
}
}Tags
x402
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