Dangerous Cold Persists through Monday; Wintry Weather from the Northern Plains to the Great Lakes

Bitter cold temperatures and dangerous wind chills will persist from Florida to the Northeast through Monday. Daily record low temperatures are forecast across the Southeast and Florida, with some all-time February low temperature records possible across Florida. An Alberta clipper will spread wintry precipitation across the Northern Plains today and into the upper Great Lakes into tonight. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Clear

45°F

7°C

Humidity 93%
Wind Speed S 3 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 02 Feb 12:00 AM PST
Extended Forecast for

Newcastle WA

  • Overnight

    Overnight: A chance of rain before 4am, then a slight chance of rain after 5am.  Mostly cloudy, with a low around 44. South southeast wind around 6 mph.  Chance of precipitation is 30%.

    Low: 44 °F

    Chance Rain

  • Monday

    Monday: Rain, mainly before 3pm.  High near 50. South southeast wind around 6 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Rain

  • Monday Night

    Monday Night: A 30 percent chance of rain before 10pm.  Mostly cloudy, with a low around 44. South southeast wind around 5 mph becoming calm  in the evening.

    Low: 44 °F

    Chance Rain
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 58. Calm wind.

    High: 58 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 46. East southeast wind around 5 mph.

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of rain before 4am, then a slight chance of rain after 5am. Mostly cloudy, with a low around 44. South southeast wind around 6 mph. Chance of precipitation is 30%.
Monday
Rain, mainly before 3pm. High near 50. South southeast wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 30 percent chance of rain before 10pm. Mostly cloudy, with a low around 44. South southeast wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 58. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 46. East southeast wind around 5 mph.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 58.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 44.
Saturday
A chance of rain. Partly sunny, with a high near 55.
Saturday Night
Rain likely. Mostly cloudy, with a low around 46.
Sunday
Rain likely. Mostly cloudy, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.54°N 122.17°W (Elev. 397 ft)
7:00 pm PST Feb 1, 2026
12am PST Feb 2, 2026-6pm PST Feb 8, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database