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

45°F

7°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 02 Dec 03:35 AM PST
Extended Forecast for

2 Miles S Mercer Island WA

  • Overnight

    Overnight: Rain likely, mainly before 4am. Cloudy, with a low around 41. Light south southeast wind. 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 7am. Cloudy, with a high near 48. Calm wind.

    High: 48 °F

    Chance Rain
    then Cloudy

  • Tuesday Night

    Tuesday Night: Patchy fog before 4am, then patchy fog after 5am. Otherwise, cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 7am. Otherwise, cloudy, with a high near 46. Calm wind.

    High: 46 °F

    Patchy Fog
    then Cloudy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: Rain. High near 49. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 46. Chance of precipitation is 80%.

    Low: 46 °F

    Rain

  • Friday

    Friday: Rain. Cloudy, with a high near 55.

    High: 55 °F

    Rain

  • Friday Night

    Friday Night: Rain. Cloudy, with a low around 49.

    Low: 49 °F

    Rain

Detailed Forecast

Overnight
Rain likely, mainly before 4am. Cloudy, with a low around 41. Light south southeast wind. 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 7am. Cloudy, with a high near 48. Calm wind.
Tuesday Night
Patchy fog before 4am, then patchy fog after 5am. Otherwise, cloudy, with a low around 38. Calm wind.
Wednesday
Patchy fog before 7am. Otherwise, cloudy, with a high near 46. Calm wind.
Wednesday Night
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 40. Calm wind.
Thursday
Rain. High near 49. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Low around 46. Chance of precipitation is 80%.
Friday
Rain. Cloudy, with a high near 55.
Friday Night
Rain. Cloudy, with a low around 49.
Saturday
Rain. Mostly cloudy, with a high near 54.
Saturday Night
Rain likely. Mostly cloudy, with a low around 47.
Sunday
Rain. Cloudy, with a high near 54.
Sunday Night
Rain likely. Mostly cloudy, with a low around 46.
Monday
Rain likely. Cloudy, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Mercer Island WA
 47.54°N 122.2°W (Elev. 3 ft)
Last Update:
1:25 am PST Dec 2, 2025
Forecast Valid:
3am PST Dec 2, 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