Point Forecast: Seatac WA
 47.44N 122.27W (Elev. 77 m)
Last Update: 2:25 pm PDT Jul 15, 2025
Tabular Forecast
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Weather ElementsWeather/PrecipitationFire Weather
Temperature (°C)
Dewpoint (°C)
Heat Index (°C)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)
Rain
Thunder
Fog
Mixing Height  
Trans. Wind  

48-Hour Period Starting:       Back 2 Days  

Date07/1507/16
Hour (PDT)161718192021222300010203040506070809101112131415
Temperature (°C)292929292725242322212119191818192223252729313232
Dewpoint (°C)141313131213131312121212121212121213131313121212
Heat Index (°C)29292928272524252728293131
Surface Wind (mph)101010998765553332222233566
Wind DirNNNNNNNNNENNENNENNENNNNNENESSWSWWSWWWW
Gust
Sky Cover (%)323552332233437755344545
Precipitation Potential (%)000000000000000000000000
Relative Humidity (%)383636373946495154575962646665625551464137333129
Rain------------------------------------------------
Thunder------------------------------------------------

Date07/17
Hour (PDT)161718192021222300010203040506070809101112131415
Temperature (°C)333333322927242321201918171616171819212324262728
Dewpoint (°C)121112121213131313131313121213131314141414141313
Heat Index (°C)3231323129272424262728
Surface Wind (mph)666655333333333333333366
Wind DirWWWNWNWNNWNNWNNWNNWNNWNNWNWNWNWSWSWSWSWSWSWWSWWSWWSWWNWWNW
Gust
Sky Cover (%)957775544422244488844455
Precipitation Potential (%)000000000000000000000000
Relative Humidity (%)292728303542485358636772767980787570635752474339
Rain------------------------------------------------
Thunder------------------------------------------------

Additional Forecasts and Information
English UnitsForecast Discussion
7-Day ForecastHourly Weather Graph
NWS GIS Viewer (previously user-defined area forecast)