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

30°F

-1°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 21 Jan 02:53 AM PST
Extended Forecast for

3 Miles ENE Newcastle WA

  • Overnight

    Overnight: Mostly clear, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 50. Calm wind.

    High: 50 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 46. Calm wind.

    High: 46 °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 47.

    High: 47 °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 46.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 33. Calm wind.
Wednesday
Sunny, with a high near 50. Calm wind.
Wednesday Night
Partly cloudy, with a low around 31. Calm wind.
Thursday
Partly sunny, with a high near 46. Calm wind.
Thursday Night
Partly cloudy, with a low around 30. Calm wind.
Friday
Sunny, with a high near 47.
Friday Night
Mostly clear, with a low around 29.
Saturday
Sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Mostly sunny, with a high near 47.
Sunday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 34.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 49.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 37.
Tuesday
A slight chance of rain. Mostly cloudy, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Newcastle WA
 47.58°N 122.09°W (Elev. 200 ft)
1:26 am PST Jan 21, 2026
3am 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