Hourly wind changes
Check the wind information alongside temperature when comparing consecutive hours.
Use Weather by the Hour
Results appear below. Use U.S. coordinates to get started.
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Understand the forecast
The NWS forecasts contain periods with conditions, temperature, wind and reported precipitation probability. These are probabilities, not promises. Forecast updates may have gaps, and active alerts should be checked through your local NWS office. Coverage is limited to NWS-served U.S. locations.
How to use Weather by the Hour
Weather by the Hour helps you check live National Weather Service forecasts using U.S. coordinates. It is a simple, mobile-friendly tool available at hourlyweather.pages.dev. Start by entering information or choosing the action shown above, then read the result immediately. A working network connection is needed for external data or the open-source library.
Where does the forecast come from?
The National Weather Service supplies the forecast. This version supports U.S. coordinates where NOAA coverage is available.
What should I check before trusting the result?
Confirm your inputs and consider whether the output is an estimate. Weather, prices, medical, legal, financial and safety-related decisions require appropriate authoritative sources.
Privacy and data handling
Most calculations take place in the browser. Some tools may request public third-party information, which is described next to the relevant tool. This edition does not contain tracking scripts or advertising code.
Explore Weather by the Hour
Forecast periods
National Weather Service forecasts describe expected weather in future periods, including temperature, wind and precipitation information.
Rain probabilities
A probability of precipitation describes the likelihood of measurable rain at a point during the forecast period; it is not the percentage of time rain will fall.