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

Renton Municipal Airport (KRNT)

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

Overcast

46°F

8°C

Humidity 70%
Wind Speed NW 4 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 01 Dec 03:20 PM PST
Extended Forecast for

2 Miles S Mercer Island WA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 46. Calm wind.

    High: 46 °F

    Partly Sunny

  • Tonight

    Tonight: Rain likely, mainly between 10pm and 3am. Mostly cloudy, with a low around 41. South wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Rain Likely

  • Tuesday

    Tuesday: A 30 percent chance of rain before 8am. Mostly cloudy, with a high near 48. Calm wind.

    High: 48 °F

    Chance Rain
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 45. Calm wind.

    High: 45 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after 4am. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain, mainly after 10am. High near 48. Chance of precipitation is 80%.

    High: 48 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Cloudy, with a low around 45.

    Low: 45 °F

    Rain

  • Friday

    Friday: Rain. Cloudy, with a high near 54.

    High: 54 °F

    Rain

Detailed Forecast

This Afternoon
Partly sunny, with a high near 46. Calm wind.
Tonight
Rain likely, mainly between 10pm and 3am. Mostly cloudy, with a low around 41. South wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A 30 percent chance of rain before 8am. Mostly cloudy, with a high near 48. Calm wind.
Tuesday Night
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 37. Calm wind.
Wednesday
Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 45. Calm wind.
Wednesday Night
A 30 percent chance of rain after 4am. Mostly cloudy, with a low around 39.
Thursday
Rain, mainly after 10am. High near 48. Chance of precipitation is 80%.
Thursday Night
Rain. Cloudy, with a low around 45.
Friday
Rain. Cloudy, with a high near 54.
Friday Night
Rain. Cloudy, with a low around 47.
Saturday
Rain. Mostly cloudy, with a high near 53.
Saturday Night
Rain. Mostly cloudy, with a low around 46.
Sunday
Rain. Cloudy, with a high near 52.
Sunday Night
Rain likely. Mostly cloudy, with a low around 46.
Monday
Rain. Cloudy, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Mercer Island WA
 47.53°N 122.23°W (Elev. 200 ft)
Last Update:
1:26 pm PST Dec 1, 2025
Forecast Valid:
3pm PST Dec 1, 2025-6pm PST Dec 8, 2025
 
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