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 95%
Wind Speed N 0 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 26 Nov 08:53 AM PST
Extended Forecast for

3 Miles SE Newcastle WA

  • Today

    Today: A 20 percent chance of rain before noon. Patchy fog between 4pm and 5pm. Otherwise, cloudy, with a high near 49. Calm wind.

    High: 49 °F

    Slight Chance
    Rain then
    Patchy Fog

  • Tonight

    Tonight: Rain, mainly after 10pm. Low around 44. Light and variable wind becoming southeast around 6 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Rain

  • Thanksgiving Day

    Thanksgiving Day: Rain. High near 50. East southeast wind around 7 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Rain

  • Thursday Night

    Thursday Night: Rain, mainly before 4am. Low around 42. East wind around 6 mph becoming north after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Rain

  • Friday

    Friday: A 30 percent chance of rain before 10am. Partly sunny, with a high near 47. Light north wind.

    High: 47 °F

    Chance Rain
    then Partly
    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A 20 percent chance of rain. Mostly cloudy, with a high near 48.

    High: 48 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

Detailed Forecast

Today
A 20 percent chance of rain before noon. Patchy fog between 4pm and 5pm. Otherwise, cloudy, with a high near 49. Calm wind.
Tonight
Rain, mainly after 10pm. Low around 44. Light and variable wind becoming southeast around 6 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thanksgiving Day
Rain. High near 50. East southeast wind around 7 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain, mainly before 4am. Low around 42. East wind around 6 mph becoming north after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A 30 percent chance of rain before 10am. Partly sunny, with a high near 47. Light north wind.
Friday Night
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 38.
Saturday
A 20 percent chance of rain. Mostly cloudy, with a high near 48.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
Partly sunny, with a high near 46.
Sunday Night
A slight chance of snow after 4am. Mostly cloudy, with a low around 37.
Monday
A slight chance of rain and snow. Mostly cloudy, with a high near 48.
Monday Night
A chance of rain. Mostly cloudy, with a low around 40.
Tuesday
A chance of rain. Mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Newcastle WA
 47.51°N 122.1°W (Elev. 1201 ft)
Last Update:
7:01 am PST Nov 26, 2025
Forecast Valid:
9am PST Nov 26, 2025-6pm PST Dec 2, 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