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

37°F

3°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 27 Dec 02:20 AM PST
Extended Forecast for

3 Miles E Newcastle WA

  • Overnight

    Overnight: A 20 percent chance of snow showers before 3am. Mostly cloudy, with a low around 31. South southwest wind around 7 mph.

    Low: 31 °F

    Slight Chance
    Snow Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 37. Wind chill values between 25 and 35. West northwest wind around 5 mph becoming light and variable in the morning.

    High: 37 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 30. Light southeast wind.

    Low: 30 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 39. Light and variable wind.

    High: 39 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 33. Calm wind becoming east around 5 mph after midnight.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 42.

    High: 42 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 43.

    High: 43 °F

    Mostly Cloudy

  • Tuesday Night

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

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of snow showers before 3am. Mostly cloudy, with a low around 31. South southwest wind around 7 mph.
Saturday
Mostly sunny, with a high near 37. Wind chill values between 25 and 35. West northwest wind around 5 mph becoming light and variable in the morning.
Saturday Night
Mostly cloudy, with a low around 30. Light southeast wind.
Sunday
Partly sunny, with a high near 39. Light and variable wind.
Sunday Night
Mostly cloudy, with a low around 33. Calm wind becoming east around 5 mph after midnight.
Monday
Mostly cloudy, with a high near 42.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Mostly cloudy, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
A slight chance of rain after 10am. Mostly cloudy, with a high near 45.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 38.
New Year's Day
A chance of rain. Cloudy, with a high near 46.
Thursday Night
Rain likely. Mostly cloudy, with a low around 38.
Friday
Rain and snow likely. Mostly cloudy, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Newcastle WA
 47.53°N 122.11°W (Elev. 1237 ft)
Last Update:
1:26 am PST Dec 27, 2025
Forecast Valid:
2am PST Dec 27, 2025-6pm PST Jan 2, 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