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

41°F

5°C

Humidity 80%
Wind Speed S 6 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 21 Jan 03:00 PM PST
Extended Forecast for

2 Miles ENE Newcastle WA

  • Tonight

    Tonight: Partly cloudy, with a low around 32. Light 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. North wind 3 to 5 mph.

    High: 43 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 28. East northeast wind 3 to 5 mph.

    Low: 28 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 32. Light 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. North wind 3 to 5 mph.
Friday Night
Clear, with a low around 28. East northeast wind 3 to 5 mph.
Saturday
Sunny, with a high near 42.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Mostly sunny, with a high near 43.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
A slight chance of rain and snow. Mostly cloudy, with a high near 45.
Monday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 34.
Tuesday
A slight chance of rain. Partly sunny, with a high near 48.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 37.
Wednesday
A 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)
1:25 pm PST Jan 21, 2026
3pm PST Jan 21, 2026-6pm PST Jan 28, 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