Pull an hourly forecast from the National Weather Service API to pick a rain-free scheduling window for an exterior-cleaning job
domain: weather.gov · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Look up the job site's latitude/longitude, since the API does not geocode street addresses itself.
GET https://api.weather.gov/points/{lat},{lon} and read the properties.forecastHourly URL from the returned GeoJSON.
GET that forecastHourly URL to retrieve the hour-by-hour forecast, including precipitation chance and wind, for the job site's grid square.
Cache the /points result, since the lat/lon-to-grid mapping rarely changes and repeated lookups aren't needed for the same address.
Pick a scheduling window based on precipitation probability and wind speed before confirming the appointment with the crew and client.
Known gotchas
Requests must include a descriptive User-Agent header with contact info, or the API can return a 403; there's no traditional API key.
Coordinates are limited to four decimal places of precision (about 30 feet); more precise coordinates get rejected with an error suggesting the nearest valid point.
Don't add cache-busting query parameters; unrecognized parameters return a 400, and the API already sends Cache-Control/Last-Modified headers for freshness.
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