Weather in Mercer Island, Washington, United States

7-Day Detailed Weather Forecast for Mercer Island

Overnight

Temperature: 36°F

Wind Speed: 3 mph

Wind Direction: S

Forecast: A slight chance of rain before 4am, then patchy frost. Mostly cloudy, with a low around 36. South wind around 3 mph. Chance of precipitation is 20%.

Thursday

Temperature: 57°F

Wind Speed: 5 mph

Wind Direction: S

Forecast: Mostly sunny, with a high near 57. South wind around 5 mph.

Thursday Night

Temperature: 40°F

Wind Speed: 5 mph

Wind Direction: S

Forecast: Mostly cloudy, with a low around 40. South wind around 5 mph.

Friday

Temperature: 58°F

Wind Speed: 3 mph

Wind Direction: WSW

Forecast: Mostly sunny, with a high near 58. West southwest wind around 3 mph.

Friday Night

Temperature: 42°F

Wind Speed: 3 mph

Wind Direction: NNE

Forecast: Mostly cloudy, with a low around 42. North northeast wind around 3 mph.

Saturday

Temperature: 66°F

Wind Speed: 3 mph

Wind Direction: SSE

Forecast: Mostly cloudy, with a high near 66.

Saturday Night

Temperature: 49°F

Wind Speed: 3 mph

Wind Direction: NE

Forecast: A chance of rain after 11pm. Mostly cloudy, with a low around 49.

Sunday

Temperature: 67°F

Wind Speed: 2 to 6 mph

Wind Direction: N

Forecast: A chance of rain. Mostly cloudy, with a high near 67.

Sunday Night

Temperature: 49°F

Wind Speed: 2 to 6 mph

Wind Direction: N

Forecast: A slight chance of rain. Mostly cloudy, with a low around 49.

Monday

Temperature: 68°F

Wind Speed: 2 to 7 mph

Wind Direction: N

Forecast: A slight chance of rain. Partly sunny, with a high near 68.

Monday Night

Temperature: 50°F

Wind Speed: 7 mph

Wind Direction: S

Forecast: A slight chance of rain. Mostly cloudy, with a low around 50.

Tuesday

Temperature: 62°F

Wind Speed: 7 mph

Wind Direction: SSW

Forecast: A chance of rain. Partly sunny, with a high near 62.

Tuesday Night

Temperature: 49°F

Wind Speed: 7 mph

Wind Direction: SSW

Forecast: A chance of rain. Mostly cloudy, with a low around 49.

Wednesday

Temperature: 57°F

Wind Speed: 7 mph

Wind Direction: SW

Forecast: A chance of rain. Mostly cloudy, with a high near 57.