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

Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

light rain,mist

55°F

13°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 54°F (12°C)
Visibility 4.00 mi
Last update 24 Sep 09:20 PM PDT
Extended Forecast for

2 Miles E Mercer Island WA

  • Tonight

    Tonight: Rain, mainly before 4am. Steady temperature around 57. Calm wind. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Rain

  • Friday

    Friday: Rain likely and possibly a thunderstorm before noon, then showers and possibly a thunderstorm between noon and 5pm, then rain likely and possibly a thunderstorm after 5pm. High near 63. South southwest wind 3 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 63 °F

    Showers
    Likely then
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of rain before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 49. South wind 6 to 8 mph.

    Low: 49 °F

    Chance Rain
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 64. South wind around 5 mph becoming calm in the morning.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 47. North northeast wind 3 to 5 mph.

    Low: 47 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A slight chance of rain after 11pm. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Rain, mainly before 4am. Steady temperature around 57. Calm wind. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain likely and possibly a thunderstorm before noon, then showers and possibly a thunderstorm between noon and 5pm, then rain likely and possibly a thunderstorm after 5pm. High near 63. South southwest wind 3 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A 30 percent chance of rain before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 49. South wind 6 to 8 mph.
Saturday
Mostly sunny, with a high near 64. South wind around 5 mph becoming calm in the morning.
Saturday Night
Mostly cloudy, with a low around 47. North northeast wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly cloudy, with a high near 65.
Monday Night
A slight chance of rain after 11pm. Mostly cloudy, with a low around 52.
Tuesday
A chance of rain. Mostly cloudy, with a high near 64.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 52.
Wednesday
Mostly cloudy, with a high near 65.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 51.
Thursday
A chance of rain. Partly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Mercer Island WA
 47.56°N 122.18°W (Elev. 207 ft)
Last Update:
12:20 pm PDT Sep 24, 2026
Forecast Valid:
9pm PDT Sep 24, 2026-6pm PDT Oct 1, 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