10-Day Weather Forecast - Mercer Island, WA

Partly sunny. A slight chance of rain early in the afternoon. A slight chance of thunderstorms late in the afternoon. Highs near 70. Light wind.

Mostly cloudy. Lows in the lower to mid 50s. Light wind.

Mostly cloudy in the morning then becoming mostly sunny. Highs near 70. Light wind.

Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower to mid 50s. Light wind.

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

Partly cloudy with a slight chance of rain. Lows in the mid 50s.

Partly sunny. A chance of rain in the morning, then a slight chance of rain in the afternoon. Highs in the lower 70s.

Partly cloudy with a slight chance of rain. Lows in the mid to upper 50s.

Mostly cloudy. Highs in the lower to mid 70s.

Partly cloudy. Lows in the mid 50s.

Mostly sunny. Highs in the mid to upper 70s.

Mostly clear. Lows in the mid to upper 50s.

Mostly sunny. A slight chance of rain in the afternoon. Highs in the mid 70s.

Partly cloudy. Low temperature around 57F. Dew point will be around 54F with an average humidity of 80%. Winds will be 2 mph from the SW.

Cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 65F. Dew point will be around 54F with an average humidity of 75%. Winds will be 3 mph from the SW.

Partly cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 55F. Dew point will be around 53F with an average humidity of 82%. Winds will be 2 mph from the SW.

Mostly cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 64F. Dew point will be around 54F with an average humidity of 76%. Winds will be 2 mph from the SW.

Mostly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 55F. Dew point will be around 53F with an average humidity of 82%. Winds will be 2 mph from the SW.