Severe Thunderstorms and Heavy Rain Across the Central US; Wintry Mix in the Northern Plains and Northeast

Severe thunderstorms and flash flooding are possible across the central U.S. through Saturday. Large hail, damaging winds, and tornadoes are all possible. There is an increased threat for wildfire development in the southern to central High Plains. A wintry mix of snow, sleet and freezing rain are forecast across portions of the northern Plains and central New England into early Friday morning. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

Lat: 47.49509°NLon: 122.21437°WElev: 23.0ft.

Overcast

48°F

9°C

Humidity 76%
Wind Speed S 8 MPH
Barometer 30.35 in (1027.77 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 05 Mar 09:53 PM PST
Extended Forecast for

Mercer Island WA

  • Tonight

    Tonight: Rain, mainly after 11pm.  Low around 44. South wind around 6 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Chance Rain
    then Rain

  • Friday

    Friday: Rain.  High near 51. South wind 5 to 7 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Rain

  • Friday Night

    Friday Night: Rain.  Low around 49. South wind around 7 mph.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Rain then
    Rain Likely

  • Saturday

    Saturday: Rain likely, mainly before 4pm.  Mostly cloudy, with a high near 54. South southwest wind 7 to 10 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Rain Likely

  • Saturday Night

    Saturday Night: Rain, mainly after 10pm.  Low around 48. South wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Rain

  • Sunday

    Sunday: Rain.  High near 53. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely.  Mostly cloudy, with a low around 39. Chance of precipitation is 70%.

    Low: 39 °F

    Rain Likely

  • Monday

    Monday: Rain.  Cloudy, with a high near 49.

    High: 49 °F

    Rain

  • Monday Night

    Monday Night: Snow, possibly mixed with rain.  Mostly cloudy, with a low around 35.

    Low: 35 °F

    Rain/Snow

Detailed Forecast

Tonight
Rain, mainly after 11pm. Low around 44. South wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain. High near 51. South wind 5 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain. Low around 49. South wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain likely, mainly before 4pm. Mostly cloudy, with a high near 54. South southwest wind 7 to 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Rain, mainly after 10pm. Low around 48. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain. High near 53. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain likely. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.
Monday
Rain. Cloudy, with a high near 49.
Monday Night
Snow, possibly mixed with rain. Mostly cloudy, with a low around 35.
Tuesday
Rain, possibly mixed with snow, becoming all rain after 1pm. Cloudy, with a high near 47.
Tuesday Night
Rain, possibly mixed with snow. Cloudy, with a low around 37.
Wednesday
Rain, possibly mixed with snow. Cloudy, with a high near 47.
Wednesday Night
Rain, possibly mixed with snow. Cloudy, with a low around 39.
Thursday
Rain, possibly mixed with snow. Cloudy, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.56°N 122.21°W (Elev. 121 ft)
7:01 pm PST Mar 5, 2026
10pm PST Mar 5, 2026-6pm PDT Mar 12, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database