10-Day Weather Forecast - Mercer Island, WA

Partly sunny. Highs in the mid 60s to lower 70s. Light wind.

Mostly cloudy. Lows near 50. Light wind.

Mostly cloudy. Highs near 70. Light wind.

Mostly cloudy. Lows near 50.

Partly sunny. Highs in the lower 70s.

Mostly cloudy in the evening then becoming partly cloudy. A slight chance of rain. Lows near 50.

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

Mostly cloudy with a chance of rain. Lows in the upper 40s.

Mostly cloudy with a chance of rain. Highs near 60.

Mostly cloudy in the evening then becoming partly cloudy. A slight chance of rain. Lows in the lower to mid 40s.

Partly sunny. Highs near 60.

Clear. Low temperature around 44F. Dew point will be around 44F with an average humidity of 81%. Winds will be 1 mph from the E.

Sunny. High temperature around 67F. Dew point will be around 45F with an average humidity of 62%. Winds will be 3 mph from the NW.

Clear. Low temperature around 46F. Dew point will be around 43F with an average humidity of 72%. Winds will be 2 mph from the E.

Sunny. High temperature around 69F. Dew point will be around 45F with an average humidity of 56%. Winds will be 2 mph from the NW.

Mostly clear. Low temperature around 48F. Dew point will be around 44F with an average humidity of 69%. Winds will be 1 mph from the S.

Mostly sunny. High temperature around 68F. Dew point will be around 47F with an average humidity of 60%. Winds will be 2 mph from the W.

Clear. Low temperature around 48F. Dew point will be around 46F with an average humidity of 72%. Winds will be 2 mph from the SW.