Weather in SeaTac, Washington, United States

7-Day Detailed Weather Forecast for SeaTac

This Afternoon

Temperature: 42°F

Wind Speed: 6 mph

Wind Direction: N

Forecast: Sunny. High near 42, with temperatures falling to around 39 in the afternoon. North wind around 6 mph.

Tonight

Temperature: 29°F

Wind Speed: 5 mph

Wind Direction: NNE

Forecast: Mostly clear, with a low around 29. North northeast wind around 5 mph.

Sunday

Temperature: 40°F

Wind Speed: 3 to 8 mph

Wind Direction: NNE

Forecast: Sunny. High near 40, with temperatures falling to around 38 in the afternoon. North northeast wind 3 to 8 mph.

Sunday Night

Temperature: 27°F

Wind Speed: 3 to 7 mph

Wind Direction: NE

Forecast: Mostly clear, with a low around 27. Wind chill values as low as 25. Northeast wind 3 to 7 mph.

M.L. King Jr. Day

Temperature: 41°F

Wind Speed: 5 mph

Wind Direction: ENE

Forecast: Sunny, with a high near 41. East northeast wind around 5 mph.

Monday Night

Temperature: 29°F

Wind Speed: 1 to 5 mph

Wind Direction: E

Forecast: Mostly cloudy, with a low around 29.

Tuesday

Temperature: 41°F

Wind Speed: 2 mph

Wind Direction: E

Forecast: Mostly sunny, with a high near 41.

Tuesday Night

Temperature: 30°F

Wind Speed: 2 mph

Wind Direction: NE

Forecast: Partly cloudy, with a low around 30.

Wednesday

Temperature: 43°F

Wind Speed: 3 mph

Wind Direction: NNE

Forecast: Partly sunny, with a high near 43.

Wednesday Night

Temperature: 31°F

Wind Speed: 3 mph

Wind Direction: NE

Forecast: A chance of rain after 4am. Mostly cloudy, with a low around 31.

Thursday

Temperature: 43°F

Wind Speed: 3 mph

Wind Direction: SSE

Forecast: A chance of rain. Mostly cloudy, with a high near 43.

Thursday Night

Temperature: 34°F

Wind Speed: 3 mph

Wind Direction: S

Forecast: A chance of rain. Mostly cloudy, with a low around 34.

Friday

Temperature: 42°F

Wind Speed: 5 mph

Wind Direction: SSW

Forecast: A chance of rain. Mostly cloudy, with a high near 42.

Friday Night

Temperature: 32°F

Wind Speed: 5 mph

Wind Direction: NE

Forecast: A slight chance of rain. Mostly cloudy, with a low around 32.