Weather in Mercer Island, Washington, United States

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7-Day Detailed Weather Forecast for Mercer Island

Tonight

Temperature: 58°F

Wind Speed: 5 mph

Wind Direction: NE

Forecast: Mostly clear, with a low around 58. Northeast wind around 5 mph.

Sunday

Temperature: 88°F

Wind Speed: 3 to 8 mph

Wind Direction: N

Forecast: Sunny, with a high near 88. North wind 3 to 8 mph.

Sunday Night

Temperature: 62°F

Wind Speed: 0 to 7 mph

Wind Direction: NNE

Forecast: Partly cloudy, with a low around 62. North northeast wind 0 to 7 mph.

Monday

Temperature: 91°F

Wind Speed: 0 to 7 mph

Wind Direction: NW

Forecast: Partly sunny, with a high near 91. Northwest wind 0 to 7 mph.

Monday Night

Temperature: 62°F

Wind Speed: 2 to 8 mph

Wind Direction: NE

Forecast: Mostly clear, with a low around 62. Northeast wind 2 to 8 mph.

Tuesday

Temperature: 79°F

Wind Speed: 2 to 9 mph

Wind Direction: SW

Forecast: Sunny, with a high near 79.

Tuesday Night

Temperature: 55°F

Wind Speed: 1 to 9 mph

Wind Direction: ENE

Forecast: Partly cloudy, with a low around 55.

Wednesday

Temperature: 76°F

Wind Speed: 1 to 7 mph

Wind Direction: W

Forecast: Sunny, with a high near 76.

Wednesday Night

Temperature: 55°F

Wind Speed: 2 to 7 mph

Wind Direction: N

Forecast: Mostly clear, with a low around 55.

Thursday

Temperature: 79°F

Wind Speed: 2 to 8 mph

Wind Direction: N

Forecast: Sunny, with a high near 79.

Thursday Night

Temperature: 57°F

Wind Speed: 1 to 8 mph

Wind Direction: N

Forecast: Partly cloudy, with a low around 57.

Juneteenth

Temperature: 83°F

Wind Speed: 1 to 5 mph

Wind Direction: NW

Forecast: Sunny, with a high near 83.

Friday Night

Temperature: 59°F

Wind Speed: 5 mph

Wind Direction: W

Forecast: Mostly clear, with a low around 59.

Saturday

Temperature: 80°F

Wind Speed: 6 mph

Wind Direction: SW

Forecast: Sunny, with a high near 80.