National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 the day. 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.

Overcast

45°F

7°C

Humidity 87%
Wind Speed SSE 4 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 02 Feb 05:00 AM PST
Extended Forecast for

Newcastle WA

  • Overnight

    Overnight: A 20 percent chance of rain. Mostly cloudy, with a low around 44. Southeast wind around 6 mph.

    Low: 44 °F

    Slight Chance
    Rain

  • Monday

    Monday: Rain, mainly before noon. High near 51. South southeast wind around 7 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Rain then
    Chance Rain

  • Monday Night

    Monday Night: A 20 percent chance of rain before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 45. South wind around 5 mph becoming calm in the evening.

    Low: 45 °F

    Slight Chance
    Rain then
    Partly 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 3 to 5 mph.

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42.

    Low: 42 °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 20 percent chance of rain. Mostly cloudy, with a low around 44. Southeast wind around 6 mph.
Monday
Rain, mainly before noon. High near 51. South southeast wind around 7 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 20 percent chance of rain before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 45. South 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 3 to 5 mph.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Partly sunny, with a high near 57.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 44.
Saturday
A chance of rain. Mostly cloudy, with a high near 56.
Saturday Night
Rain likely. Mostly cloudy, with a low around 45.
Sunday
Rain. Mostly cloudy, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.54°N 122.17°W (Elev. 397 ft)
Last Update:
1:25 am PST Feb 2, 2026
Forecast Valid:
5am PST Feb 2, 2026-6pm PST Feb 8, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation