Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

Lat: 47.54548°NLon: 122.3147°WElev: 20.0ft.

Overcast

56°F

13°C

Humidity	83%
Wind Speed	S 12 MPH
Barometer	29.95 in (1014.22 mb)
Dewpoint	51°F (11°C)
Visibility	10.00 mi
Last update	21 Jun 11:53 AM PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Mercer Island WA

This Afternoon
High: 63 °F
Chance
Showers
Tonight
Low: 53 °F
Slight Chance
Showers
Sunday
High: 72 °F
Partly Sunny
Sunday Night
Low: 55 °F
Partly Cloudy
Monday
High: 77 °F
Mostly Sunny
Monday Night
Low: 56 °F
Mostly Clear
Tuesday
High: 81 °F
Mostly Sunny
Tuesday Night
Low: 57 °F
Mostly Cloudy
Wednesday
High: 72 °F
Slight Chance
Showers then
Partly Sunny

Detailed Forecast

This Afternoon

A chance of showers before 2pm, then a chance of showers after 4pm. Cloudy, with a high near 63. South southwest wind 5 to 7 mph. Chance of precipitation is 30%.

Tonight

A slight chance of showers before 11pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 53. Light south wind. Chance of precipitation is 20%.

Sunday

Partly sunny, with a high near 72. Light south southwest wind.

Sunday Night

Partly cloudy, with a low around 55. West southwest wind around 5 mph becoming calm in the evening.

Monday

Mostly sunny, with a high near 77. Light and variable wind.

Monday Night

Mostly clear, with a low around 56.

Tuesday

Mostly sunny, with a high near 81.

Tuesday Night

Mostly cloudy, with a low around 57.