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

34°F

1°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.34 in (1027.43 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 17 Jan 09:53 AM PST
Extended Forecast for

Newcastle WA

  • Today

    Today: Sunny, with a high near 51. Northeast wind 3 to 5 mph.

    High: 51 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 37. Light east northeast wind.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 50. Light and variable wind.

    High: 50 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. East northeast wind 3 to 5 mph.

    Low: 36 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 50. East wind around 5 mph becoming light and variable  in the morning.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 51. Northeast wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 37. Light east northeast wind.
Sunday
Sunny, with a high near 50. Light and variable wind.
Sunday Night
Mostly clear, with a low around 36. East northeast wind 3 to 5 mph.
M.L.King Day
Sunny, with a high near 50. East wind around 5 mph becoming light and variable in the morning.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Partly sunny, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Mostly sunny, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 36.
Thursday
A slight chance of rain and snow. Partly sunny, with a high near 46.
Thursday Night
A chance of rain and snow. Partly cloudy, with a low around 35.
Friday
A chance of rain and snow. Partly sunny, with a high near 43.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.55°N 122.14°W (Elev. 538 ft)
7:01 am PST Jan 17, 2026
10am PST Jan 17, 2026-6pm PST Jan 23, 2026
 
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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