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Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Current conditions at

Boeing Field - King County International Airport (KBFI)

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

Rain

52°F

11°C

Humidity 81%
Wind Speed SE 10 MPH
Barometer 30.28 in (1025.4 mb)
Dewpoint 46°F (8°C)
Visibility 8.00 mi
Last update 28 Jan 03:20 PM PST
Extended Forecast for

Mercer Island WA

  • This Afternoon

    This Afternoon: Rain. High near 51. South wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Rain

  • Tonight

    Tonight: Rain. Steady temperature around 50. South southeast wind 7 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Rain

  • Thursday

    Thursday: Rain likely, mainly before 3pm. Cloudy, with a high near 53. South wind around 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain, mainly before 4am. Low around 47. South southeast wind 3 to 5 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Rain

  • Friday

    Friday: Rain, mainly after 10am. High near 54. South wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain, mainly before 4am. Cloudy, with a low around 47.

    Low: 47 °F

    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 58.

    High: 58 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of rain, mainly after 4am. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, mainly after 10am. Mostly cloudy, with a high near 55.

    High: 55 °F

    Rain Likely

Detailed Forecast

This Afternoon
Rain. High near 51. South wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain. Steady temperature around 50. South southeast wind 7 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain likely, mainly before 3pm. Cloudy, with a high near 53. South wind around 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain, mainly before 4am. Low around 47. South southeast wind 3 to 5 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain, mainly after 10am. High near 54. South wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A 50 percent chance of rain, mainly before 4am. Cloudy, with a low around 47.
Saturday
A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 58.
Saturday Night
A chance of rain, mainly after 4am. Mostly cloudy, with a low around 45.
Sunday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 55.
Sunday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 45.
Monday
A chance of rain. Mostly cloudy, with a high near 54.
Monday Night
A chance of rain. Mostly cloudy, with a low around 42.
Tuesday
Partly sunny, with a high near 57.
Tuesday Night
Mostly cloudy, with a low around 43.
Wednesday
Partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.6°N 122.22°W (Elev. 3 ft)
Last Update:
1:25 pm PST Jan 28, 2026
Forecast Valid:
3pm PST Jan 28, 2026-6pm PST Feb 4, 2026
 
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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