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

Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Clear

42°F

6°C

Humidity 88%
Wind Speed N 13 MPH
Barometer 30.42 in (1030.14 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 16 Jan 09:53 AM PST
Extended Forecast for

Newcastle WA

  • Today

    Today: Sunny, with a high near 51. Northeast wind 6 to 11 mph.

    High: 51 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 38. East northeast wind around 11 mph.

    Low: 38 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 51. East wind 5 to 10 mph becoming light northeast in the afternoon.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. Light east wind.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 51. Light and variable wind.

    High: 51 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 51. Northeast wind 6 to 11 mph.
Tonight
Clear, with a low around 38. East northeast wind around 11 mph.
Saturday
Sunny, with a high near 51. East wind 5 to 10 mph becoming light northeast in the afternoon.
Saturday Night
Mostly clear, with a low around 36. Light east wind.
Sunday
Sunny, with a high near 51. Light and variable wind.
Sunday Night
Mostly clear, with a low around 35.
M.L.King Day
Sunny, with a high near 49.
Monday Night
Partly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Mostly cloudy, with a high near 47.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 40.
Thursday
A chance of rain. Mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
Last Update:
7:00 am PST Jan 16, 2026
Forecast Valid:
10am PST Jan 16, 2026-6pm PST Jan 22, 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