National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Weather and Flooding Threats for the Central U.S.; Fire Weather Concerns for the Western U.S.

Severe weather and flooding threats continue for portions of the central U.S., with impactful flash flooding possible from southern Kansas to southwestern Missouri. Extremely Critical fire weather conditions will develop across the Great Basin and Southwest on Friday, with dry and windy conditions through the weekend. Dangerous heat will increase across the southern and central U.S. this weekend. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

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

Overcast

68°F

20°C

Humidity 56%
Wind Speed SSE 3 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 25 Jun 03:35 PM PDT
Extended Forecast for

Mercer Island WA

  • This Afternoon

    This Afternoon: A 30 percent chance of rain after 5pm. Cloudy, with a high near 68. Southwest wind around 5 mph.

    High: 68 °F

    Chance Rain

  • Tonight

    Tonight: Rain. Low around 56. South wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Rain

  • Friday

    Friday: Rain and thunderstorms likely before 4pm, then a chance of rain after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 66. South wind 10 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Showers
    Likely then
    Chance Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain after midnight. Cloudy, with a low around 53. South southwest wind 9 to 14 mph, with gusts as high as 22 mph.

    Low: 53 °F

    Chance Rain

  • Saturday

    Saturday: A 50 percent chance of rain. Mostly cloudy, with a high near 65. South southwest wind 5 to 8 mph becoming light and variable.

    High: 65 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 67.

    High: 67 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 30 percent chance of rain after 5pm. Cloudy, with a high near 68. Southwest wind around 5 mph.
Tonight
Rain. Low around 56. South wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain and thunderstorms likely before 4pm, then a chance of rain after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 66. South wind 10 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 50 percent chance of rain after midnight. Cloudy, with a low around 53. South southwest wind 9 to 14 mph, with gusts as high as 22 mph.
Saturday
A 50 percent chance of rain. Mostly cloudy, with a high near 65. South southwest wind 5 to 8 mph becoming light and variable.
Saturday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 54.
Sunday
Mostly cloudy, with a high near 66.
Sunday Night
Mostly cloudy, with a low around 54.
Monday
Mostly cloudy, with a high near 67.
Monday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 53.
Tuesday
Mostly cloudy, with a high near 67.
Tuesday Night
Mostly cloudy, with a low around 53.
Wednesday
Mostly cloudy, with a high near 67.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 52.
Thursday
A chance of rain. Partly sunny, with a high near 68.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.55°N 122.24°W (Elev. 3 ft)
Last Update:
11:27 am PDT Jun 25, 2026
Forecast Valid:
3pm PDT Jun 25, 2026-6pm PDT Jul 2, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation