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

Severe Thunderstorm and Flash Flood Threats Continue into the Weekend

Severe thunderstorms are expected from the southern Plains to the Midwest through Friday night. Severe storm hazards may include large hail, severe winds, and tornadoes, some of which may be strong. There will be another chance for severe thunderstorms on Saturday for portions of Texas, the Lower Mississippi Valley, and the Ohio Valley. Storms could result in locally heavy rain and flash flooding. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Overcast

52°F

11°C

Humidity 87%
Wind Speed S 6 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 48°F (9°C)
Visibility 8.00 mi
Last update 07 Mar 01:15 AM PST
Extended Forecast for

Mercer Island WA

  • Overnight

    Overnight: A chance of rain before 3am, then a chance of rain after 4am. Cloudy, with a low around 48. South wind around 7 mph. Chance of precipitation is 30%.

    Low: 48 °F

    Chance Rain

  • Saturday

    Saturday: Rain likely, mainly between noon and 4pm. Mostly cloudy, with a high near 55. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Rain Likely

  • Saturday Night

    Saturday Night: Rain, mainly after midnight. Low around 47. South southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Chance Rain
    then Rain

  • Sunday

    Sunday: Rain. High near 53. South southwest wind 7 to 9 mph becoming west northwest in the afternoon. 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 before 4am, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 36. South southwest wind around 6 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Monday

    Monday: Rain likely, possibly mixed with snow before 10am, then rain. High near 47. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 47 °F

    Rain/Snow
    then Rain

  • Monday Night

    Monday Night: Rain and snow, becoming all snow after 4am. Low around 34. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow

  • Tuesday

    Tuesday: Snow before 7am, then rain, possibly mixed with snow between 7am and 1pm, then rain after 1pm. Cloudy, with a high near 47.

    High: 47 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain. Cloudy, with a low around 39.

    Low: 39 °F

    Rain

Detailed Forecast

Overnight
A chance of rain before 3am, then a chance of rain after 4am. Cloudy, with a low around 48. South wind around 7 mph. Chance of precipitation is 30%.
Saturday
Rain likely, mainly between noon and 4pm. Mostly cloudy, with a high near 55. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Rain, mainly after midnight. Low around 47. South southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain. High near 53. South southwest wind 7 to 9 mph becoming west northwest in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain likely before 4am, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 36. South southwest wind around 6 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Monday
Rain likely, possibly mixed with snow before 10am, then rain. High near 47. Chance of precipitation is 90%. Little or no snow accumulation expected.
Monday Night
Rain and snow, becoming all snow after 4am. Low around 34. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday
Snow before 7am, then rain, possibly mixed with snow between 7am and 1pm, then rain after 1pm. Cloudy, with a high near 47.
Tuesday Night
Rain. Cloudy, with a low around 39.
Wednesday
Rain. Cloudy, with a high near 50.
Wednesday Night
Rain, possibly mixed with snow. Cloudy, with a low around 43.
Thursday
Rain, possibly mixed with snow. Cloudy, with a high near 50.
Thursday Night
Rain and snow. Cloudy, with a low around 40.
Friday
Rain and snow. Cloudy, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mercer Island WA
 47.56°N 122.21°W (Elev. 121 ft)
Last Update:
1:25 am PST Mar 7, 2026
Forecast Valid:
1am PST Mar 7, 2026-6pm PDT Mar 13, 2026
 
Forecast Discussion
 
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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