Weather in Mercer Island, Washington, United States

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7-Day Detailed Weather Forecast for Mercer Island

Tonight

Temperature: 59°F

Wind Speed: 5 to 8 mph

Wind Direction: SSW

Forecast: Partly cloudy, with a low around 59. South southwest wind 5 to 8 mph.

Wednesday

Temperature: 79°F

Wind Speed: 5 mph

Wind Direction: SSW

Forecast: Mostly sunny, with a high near 79. South southwest wind around 5 mph.

Wednesday Night

Temperature: 59°F

Wind Speed: 6 mph

Wind Direction: SSW

Forecast: Partly cloudy. Low around 59, with temperatures rising to around 61 overnight. South southwest wind around 6 mph.

Thursday

Temperature: 75°F

Wind Speed: 8 mph

Wind Direction: SSW

Forecast: Partly sunny, with a high near 75. South southwest wind around 8 mph.

Thursday Night

Temperature: 57°F

Wind Speed: 3 to 8 mph

Wind Direction: SW

Forecast: Partly cloudy, with a low around 57. Southwest wind 3 to 8 mph.

Friday

Temperature: 74°F

Wind Speed: 3 mph

Wind Direction: WSW

Forecast: Partly sunny, with a high near 74. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

Friday Night

Temperature: 56°F

Wind Speed: 2 to 6 mph

Wind Direction: NNE

Forecast: A chance of rain after 11pm. Mostly cloudy, with a low around 56.

Saturday

Temperature: 70°F

Wind Speed: 3 mph

Wind Direction: SW

Forecast: A chance of rain before 5pm. Partly sunny, with a high near 70.

Saturday Night

Temperature: 55°F

Wind Speed: 2 mph

Wind Direction: WSW

Forecast: Mostly cloudy, with a low around 55.

Sunday

Temperature: 71°F

Wind Speed: 3 mph

Wind Direction: WSW

Forecast: Partly sunny, with a high near 71.

Sunday Night

Temperature: 55°F

Wind Speed: 3 mph

Wind Direction: NNE

Forecast: Mostly cloudy, with a low around 55.

Monday

Temperature: 71°F

Wind Speed: 5 mph

Wind Direction: SW

Forecast: Partly sunny, with a high near 71.

Monday Night

Temperature: 56°F

Wind Speed: 5 mph

Wind Direction: S

Forecast: A slight chance of rain after 11pm. Mostly cloudy, with a low around 56.

Tuesday

Temperature: 71°F

Wind Speed: 5 mph

Wind Direction: SSW

Forecast: A chance of rain. Mostly cloudy, with a high near 71.