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

51°F

11°C

Humidity 89%
Wind Speed S 8 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 48°F (9°C)
Visibility 7.00 mi
Last update 07 Mar 12:53 AM PST
Extended Forecast for

Mercer Island WA

  • Overnight

    Overnight: Rain likely, mainly after 4am.  Cloudy, with a low around 48. South wind around 7 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Rain Likely

  • Saturday

    Saturday: Rain likely, mainly between noon and 1pm.  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 10pm.  Low around 48. 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: 48 °F

    Rain

  • Sunday

    Sunday: Rain.  High near 53. West southwest wind 7 to 9 mph.  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 37. South southwest wind around 6 mph.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 37 °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: Snow, possibly mixed with rain.  Low around 35. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain/Snow

  • Tuesday

    Tuesday: Rain, possibly mixed with snow, becoming all rain after 1pm.  Cloudy, with a high near 47.

    High: 47 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain.  Cloudy, with a low around 38.

    Low: 38 °F

    Rain

Detailed Forecast

Overnight
Rain likely, mainly after 4am. Cloudy, with a low around 48. South wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain likely, mainly between noon and 1pm. 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 10pm. Low around 48. 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. West southwest wind 7 to 9 mph. 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 37. 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
Snow, possibly mixed with rain. Low around 35. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday
Rain, possibly mixed with snow, becoming all rain after 1pm. Cloudy, with a high near 47.
Tuesday Night
Rain. Cloudy, with a low around 38.
Wednesday
Rain. Cloudy, with a high near 48.
Wednesday Night
Rain. Cloudy, with a low around 41.
Thursday
Rain. Cloudy, with a high near 50.
Thursday Night
Rain, possibly mixed with snow. Mostly cloudy, with a low around 36.
Friday
Rain, possibly mixed with snow. Mostly cloudy, with a high near 49.
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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 6, 2026
1am PST Mar 7, 2026-6pm PDT Mar 13, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database