Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Clear

32°F

0°C

Humidity 92%
Wind Speed ESE 3 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 30°F (-1°C)
Visibility 9.00 mi
Last update 21 Jan 02:00 AM PST
Extended Forecast for

2 Miles ENE Newcastle WA

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 36. Light east wind.

    Low: 36 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 47. Light northeast wind.

    High: 47 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32. Light east southeast wind.

    Low: 32 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 42. Calm wind.

    High: 42 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 36. Light east wind.
Wednesday
Sunny, with a high near 47. Light northeast wind.
Wednesday Night
Partly cloudy, with a low around 32. Light east southeast wind.
Thursday
Partly sunny, with a high near 42. Calm wind.
Thursday Night
Partly cloudy, with a low around 30. Calm wind.
Friday
Sunny, with a high near 43.
Friday Night
Mostly clear, with a low around 29.
Saturday
Sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 43.
Sunday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 32.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 45.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 36.
Tuesday
A slight chance of rain. Mostly cloudy, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Newcastle WA
 47.55°N 122.11°W (Elev. 794 ft)
1:26 am PST Jan 21, 2026
2am PST Jan 21, 2026-6pm PST Jan 27, 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