Major Winter Storm Ongoing in the Upper Midwest and Great Lakes; Severe Weather Along the East Coast

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through today across the Upper Midwest and Upper Great Lakes. Widespread severe storms are expected across the entire eastern U.S. with the highest threat over the interior Mid-Atlantic, where there is a risk for damaging wind gusts and a few tornadoes. Heat continues to build in the West. Read More >

Hazardous Weather Conditions

Current conditions at

Boeing Field - King County International Airport (KBFI)

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

Overcast

45°F

7°C

Humidity 93%
Wind Speed SSE 12 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 16 Mar 06:35 AM PDT
Extended Forecast for

Mercer Island WA

  • Today

    Today: Rain, mainly before 1pm.  High near 57. South wind 6 to 8 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Rain then
    Chance Rain

  • Tonight

    Tonight: Rain, mainly after midnight.  Low around 49. South wind around 8 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Chance Rain
    then Rain

  • Tuesday

    Tuesday: Rain.  High near 56. South wind around 8 mph.  Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 52. South wind around 7 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 57. South wind around 7 mph.  Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain.  Low around 53. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Rain

  • Thursday

    Thursday: Rain.  High near 59. Chance of precipitation is 90%.

    High: 59 °F

    Rain

  • Thursday Night

    Thursday Night: Rain.  Cloudy, with a low around 51.

    Low: 51 °F

    Rain

  • Friday

    Friday: Rain.  Cloudy, with a high near 58.

    High: 58 °F

    Rain

Detailed Forecast

Today
Rain, mainly before 1pm. High near 57. South wind 6 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain, mainly after midnight. Low around 49. South wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain. High near 56. South wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain. Low around 52. South wind around 7 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. High near 57. South wind around 7 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Low around 53. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain. High near 59. Chance of precipitation is 90%.
Thursday Night
Rain. Cloudy, with a low around 51.
Friday
Rain. Cloudy, with a high near 58.
Friday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 43.
Saturday
A chance of rain. Partly sunny, with a high near 54.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 38.
Sunday
A chance of rain. Mostly sunny, with a high near 54.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.6°N 122.22°W (Elev. 3 ft)
2:25 am PDT Mar 16, 2026
6am PDT Mar 16, 2026-6pm PDT Mar 22, 2026
 
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