Point Forecast: Seatac WA
 47.44N 122.3W (Elev. 358 ft)
Last Update: 2:25 pm PDT Jul 15, 2025
Tabular Forecast
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Weather ElementsWeather/PrecipitationFire Weather
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

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)181920212223000102030405060708091011121314151617
Temperature (°F)858482777574727070676665646770747780838688909091
Dewpoint (°F)535352525353525352525252525352535453545352535250
Heat Index (°F)83838177757780828486888788
Surface Wind (mph)11109987655533322223566777
Wind DirNNNNNNENNENNENNENNENNENNENNENNENNEENESSWWSWWSWWWWWW
Gust
Sky Cover (%)255132223344684434454594
Precipitation Potential (%)000000000000000000000000
Relative Humidity (%)333536424647505453596163646053484539373229282725
Rain------------------------------------------------
Thunder------------------------------------------------

Date07/17
Hour (PDT)181920212223000102030405060708091011121314151617
Temperature (°F)908885797573706866646261616264666972757881838585
Dewpoint (°F)515252535354535353535353535454545453535454535453
Heat Index (°F)8786837975757881828383
Surface Wind (mph)666653333335555555557777
Wind DirWNWNWNNWNNWNNWNNWNNWNNWNWNWNWSWSWSWSWSWSWWSWWSWWSWWNWWNWWNWNNW
Gust
Sky Cover (%)687333332225558884444444
Precipitation Potential (%)000000000000000000000000
Relative Humidity (%)262932404651555963687275757470655852474339363433
Rain------------------------------------------------
Thunder------------------------------------------------

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