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

34°F

1°C

Humidity 93%
Wind Speed S 6 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 21 Jan 11:35 AM PST
Extended Forecast for

2 Miles ENE Newcastle WA

  • Today

    Today: Sunny, with a high near 47. Calm wind.

    High: 47 °F

    Sunny

  • Tonight

    Tonight: 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. North wind 3 to 5 mph.

    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

  • Sunday

    Sunday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 47. Calm wind.
Tonight
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. North wind 3 to 5 mph.
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)
7:01 am PST Jan 21, 2026
11am 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