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.

Clear

37°F

3°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 30.61 in (1036.57 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 28 Dec 07:35 PM PST
Extended Forecast for

3 Miles NNE Newcastle WA

  • Tonight

    Tonight: A 20 percent chance of rain before 8pm. Mostly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: Patchy fog between 9am and 10am. Otherwise, partly sunny, with a high near 47. Calm wind.

    High: 47 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 48. Calm wind.

    High: 48 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A slight chance of rain after 10am. Mostly cloudy, with a high near 49.

    High: 49 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly after 4am. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Rain Likely

Detailed Forecast

Tonight
A 20 percent chance of rain before 8pm. Mostly cloudy, with a low around 33. Calm wind.
Monday
Patchy fog between 9am and 10am. Otherwise, partly sunny, with a high near 47. Calm wind.
Monday Night
Mostly cloudy, with a low around 33. Calm wind.
Tuesday
Partly sunny, with a high near 48. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 35. Calm wind.
Wednesday
Partly sunny, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 37.
New Year's Day
A slight chance of rain after 10am. Mostly cloudy, with a high near 49.
Thursday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 40.
Friday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 49.
Friday Night
A chance of rain. Mostly cloudy, with a low around 39.
Saturday
A chance of rain. Mostly cloudy, with a high near 48.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 37.
Sunday
A chance of rain and snow. Partly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Newcastle WA
 47.59°N 122.12°W (Elev. 256 ft)
Last Update:
7:01 pm PST Dec 28, 2025
Forecast Valid:
7pm PST Dec 28, 2025-6pm PST Jan 4, 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