Weather in Mercer Island, Washington, United States

7-Day Detailed Weather Forecast for Mercer Island

Today

Temperature: 89°F

Wind Speed: 2 to 6 mph

Wind Direction: NNW

Forecast: Mostly sunny, with a high near 89. North northwest wind 2 to 6 mph.

Tonight

Temperature: 65°F

Wind Speed: 1 to 5 mph

Wind Direction: NNE

Forecast: Mostly clear. Low around 65, with temperatures rising to around 67 overnight. North northeast wind 1 to 5 mph.

Monday

Temperature: 88°F

Wind Speed: 1 to 6 mph

Wind Direction: NW

Forecast: Mostly sunny, with a high near 88. Northwest wind 1 to 6 mph.

Monday Night

Temperature: 65°F

Wind Speed: 5 mph

Wind Direction: N

Forecast: Partly cloudy, with a low around 65. North wind around 5 mph.

Tuesday

Temperature: 88°F

Wind Speed: 5 mph

Wind Direction: NNW

Forecast: Mostly sunny, with a high near 88. North northwest wind around 5 mph.

Tuesday Night

Temperature: 65°F

Wind Speed: 5 mph

Wind Direction: NW

Forecast: Mostly cloudy, with a low around 65.

Wednesday

Temperature: 80°F

Wind Speed: 5 mph

Wind Direction: SSW

Forecast: Mostly cloudy, with a high near 80.

Wednesday Night

Temperature: 62°F

Wind Speed: 5 mph

Wind Direction: SSW

Forecast: Mostly cloudy, with a low around 62.

Thursday

Temperature: 80°F

Wind Speed: 5 mph

Wind Direction: SW

Forecast: Mostly sunny, with a high near 80.

Thursday Night

Temperature: 61°F

Wind Speed: 5 mph

Wind Direction: WSW

Forecast: A slight chance of rain after 11pm. Mostly cloudy, with a low around 61.

Friday

Temperature: 74°F

Wind Speed: 6 mph

Wind Direction: SSW

Forecast: A slight chance of rain. Partly sunny, with a high near 74.

Friday Night

Temperature: 59°F

Wind Speed: 6 mph

Wind Direction: SSW

Forecast: A slight chance of rain. Mostly cloudy, with a low around 59.

Saturday

Temperature: 75°F

Wind Speed: 6 mph

Wind Direction: WSW

Forecast: A slight chance of rain before 11am. Partly sunny, with a high near 75.

Saturday Night

Temperature: 59°F

Wind Speed: 6 mph

Wind Direction: NNE

Forecast: Mostly cloudy, with a low around 59.