10-Day Weather Forecast - SeaTac, WA

Mostly cloudy. Highs in the 50s. Light wind.

Mostly cloudy. A slight chance of rain in the evening, then a chance of rain after midnight. Lows in the upper 30s to mid 40s. North wind to 10 mph in the evening becoming light.

Rain likely. Rainfall amounts a tenth to a quarter of an inch possible. Highs in the 50s to lower 60s. Light wind.

Rain likely. Lows in the lower to mid 40s.

Mostly cloudy with a chance of rain. Highs in the upper 50s.

Mostly cloudy with a slight chance of rain. Lows in the lower to mid 40s.

Mostly cloudy with a slight chance of rain. Highs in the mid to upper 50s.

Mostly cloudy with a slight chance of rain. Lows near 40.

Mostly cloudy with a chance of rain. Highs in the mid to upper 50s.

Partly cloudy with a slight chance of rain. Lows near 40.

Partly sunny with a slight chance of rain. Highs in the mid to upper 50s.

Clear. Low temperature around 45F. Dew point will be around 40F with an average humidity of 83%. Winds will be 6 mph from the NNE.

Partly cloudy. High temperature around 58F. Dew point will be around 49F with an average humidity of 78%. Winds will be 2 mph from the WNW.

Partly cloudy. Low temperature around 45F. Dew point will be around 42F with an average humidity of 85%. Winds will be 3 mph from the SSE.

Partly cloudy. High temperature around 59F. Dew point will be around 52F with an average humidity of 81%. Winds will be 3 mph from the WNW.

Mostly cloudy. Low temperature around 46F. Dew point will be around 46F with an average humidity of 94%. Winds will be 6 mph from the NNE.