{"uid":"cap_i5POwcuZI7iwcqKo4IJBg","slug":"opendata402-us-weather-forecast-1c0d4eb7","name":"opendata402 US Weather Forecast","description":"US weather forecast from the National Weather Service for a latitude/longitude inside the United States: the next 7 days in 12-hour periods with temperature, wind, precipitation chance and a short and detailed text forecast. Use it for travel, events, logistics or field work in the US. NOAA/NWS data, US public domain.","url":"https://opendata402.com/v1/weather/us?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["lat","lon"],"properties":{"lat":{"type":"string","pattern":"^-?\\d{1,2}(\\.\\d+)?$","description":"Latitude (US only)."},"lon":{"type":"string","pattern":"^-?\\d{1,3}(\\.\\d+)?$","description":"Longitude (US only)."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_d730wj817XQIy0UoUmbnw","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a 7-day US weather forecast in 12-hour periods (temperature, wind, precipitation chance, short and detailed text) for a given latitude/longitude using NOAA/NWS data.","exampleAgentPrompt":"What's the 7-day weather forecast for latitude 40.7128, longitude -74.0060? I need temperature, wind, and rain chances for each 12-hour period.","exampleUseCases":[{"title":"Outdoor event planning check","prompt":"I'm organizing an outdoor concert in Austin, Texas this Saturday. Can you get me the full 7-day NWS forecast for latitude 30.2672, longitude -97.7431 so I can see temperatures, wind, and rain chances for each half-day?"},{"title":"Field crew logistics scheduling","prompt":"We have crews working a construction site near Denver — can you pull the next 7-day weather forecast for lat 39.7392, lon -104.9903 so we can see when high winds or rain might disrupt work?"},{"title":"Travel packing weather check","prompt":"I'm flying to Seattle next week and want to know what weather to expect. Can you get the NOAA forecast for latitude 47.6062, longitude -122.3321 for the next 7 days including temperatures and precipitation chances?"}],"resultDescription":"A structured 7-day forecast broken into 12-hour periods, each containing the period name (e.g. 'Tonight', 'Monday Morning'), temperature with unit, wind speed and direction, precipitation chance, a short forecast label (e.g. 'Mostly Cloudy'), and a detailed text narrative — all sourced from the National Weather Service.","failureModes":["Coordinates outside the United States return an error or no data — NWS only covers US territory","Invalid lat/lon format (e.g. letters or out-of-range values) will be rejected by schema validation","NWS API upstream outages may cause the endpoint to return a 5xx or timeout","Coordinates over open ocean or US territories without NWS grid coverage may fail to resolve a forecast grid point"],"whenToPreferThis":"Choose this endpoint when you need authoritative, structured NOAA/NWS forecast data for a specific US location by coordinates, especially when you need multi-day (up to 7 days) forecasts in 12-hour blocks with both quantitative fields (temperature, wind, precipitation chance) and human-readable narrative text. Prefer it over generic weather APIs when NOAA sourcing, US public-domain data provenance, or detailed narrative forecasts matter. Not suitable for non-US locations or real-time current conditions.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-15T06:38:38.153Z","isFirstParty":false,"canonicalSlug":"opendata402-us-weather-forecast-1c0d4eb7"}