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

Dangerous Cold and Gusty Winds Anticipated This Weekend

A significant arctic outbreak will bring frigid temperatures and dangerously cold wind chills to the Northeast and Mid-Atlantic this weekend. Strong winds which could produce tree damage and power outages, and periods of snow squalls are also possible. Relief from this cold and a warming trend is forecast to commence by the beginning to middle of next week. 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 SE 5 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 05 Feb 10:35 PM PST
Extended Forecast for

Newcastle WA

  • Tonight

    Tonight: Mostly clear, with a low around 43. Southeast wind 3 to 5 mph.

    Low: 43 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 59. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 59 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of rain after 4am. Increasing clouds, with a low around 45. South wind around 5 mph.

    Low: 45 °F

    Partly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: Rain, mainly after 10am. High near 53. South southeast wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 47. South wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Rain

  • Sunday

    Sunday: Rain. High near 51. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 51 °F

    Rain

  • Sunday Night

    Sunday Night: Rain, mainly before 10pm. Low around 42. Chance of precipitation is 80%.

    Low: 42 °F

    Rain then
    Chance Rain

  • Monday

    Monday: Rain likely, mainly after 10am. Mostly cloudy, with a high near 50.

    High: 50 °F

    Rain Likely

  • Monday Night

    Monday Night: A chance of rain. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 43. Southeast wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 59. Calm wind becoming south southwest around 5 mph in the afternoon.
Friday Night
A 30 percent chance of rain after 4am. Increasing clouds, with a low around 45. South wind around 5 mph.
Saturday
Rain, mainly after 10am. High near 53. South southeast wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain. Low around 47. South wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain. High near 51. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain, mainly before 10pm. Low around 42. Chance of precipitation is 80%.
Monday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 50.
Monday Night
A chance of rain. Mostly cloudy, with a low around 40.
Tuesday
A chance of rain. Mostly cloudy, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
A slight chance of rain. Partly sunny, with a high near 50.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 38.
Thursday
A chance of rain. Mostly cloudy, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.52°N 122.17°W (Elev. 400 ft)
Last Update:
7:01 pm PST Feb 5, 2026
Forecast Valid:
10pm PST Feb 5, 2026-6pm PST Feb 12, 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