10-Day Weather Forecast - SeaTac, WA

Mostly sunny. Highs in the upper 70s to mid 80s. Light wind becoming north 10 to 15 mph in the afternoon.

Mostly clear. Lows near 60. North wind 10 to 15 mph becoming northeast after midnight.

Mostly sunny. Highs in the 80s. Light wind becoming north to 10 mph in the afternoon.

Partly cloudy. Lows near 60.

Sunny. Highs in the mid 80s to lower 90s.

Partly cloudy. Lows in the 50s.

Partly sunny. Highs in the lower to mid 70s.

Mostly cloudy. A slight chance of rain in the evening then a chance of rain after midnight. Lows in the lower to mid 50s.

Rain likely in the morning then mostly cloudy with a chance of rain in the afternoon. Highs in the 60s.

Mostly cloudy with a chance of rain. Lows in the lower 50s.

Mostly cloudy with a chance of rain. Highs in the mid to upper 60s.

Partly cloudy with a chance of rain. Chance of precipitation 50%. Low temperature around 53F. Dew point will be around 50F with an average humidity of 80%. Winds will be 6 mph from the S.

Partly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 69F. Dew point will be around 50F with an average humidity of 64%. Winds will be 4 mph from the SW.

Partly cloudy. Low temperature around 53F. Dew point will be around 48F with an average humidity of 72%. Winds will be 2 mph from the NW.

Sunny. High temperature around 74F. Dew point will be around 51F with an average humidity of 57%. Winds will be 3 mph from the NW.

Clear. Low temperature around 54F. Dew point will be around 49F with an average humidity of 68%. Winds will be 2 mph from the NW.

Sunny. High temperature around 77F. Dew point will be around 51F with an average humidity of 55%. Winds will be 3 mph from the NW.

Clear. Low temperature around 55F. Dew point will be around 50F with an average humidity of 65%. Winds will be 2 mph from the NW.