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.

Partly Cloudy

43°F

6°C

Humidity 93%
Wind Speed N 4 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 05 Feb 08:35 AM PST
Extended Forecast for

Newcastle WA

  • Today

    Today: Mostly sunny, with a high near 60. East northeast wind around 5 mph becoming calm in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 43. Southeast wind around 6 mph.

    Low: 43 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 58. South southwest wind 3 to 5 mph.

    High: 58 °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 6 mph.

    Low: 45 °F

    Partly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: Rain, mainly after 10am. High near 52. South wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 52 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 47. 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 50. Chance of precipitation is 90%.

    High: 50 °F

    Rain

  • Sunday Night

    Sunday Night: Rain. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Rain

  • Monday

    Monday: Rain likely. Mostly cloudy, with a high near 48.

    High: 48 °F

    Rain Likely

Detailed Forecast

Today
Mostly sunny, with a high near 60. East northeast wind around 5 mph becoming calm in the afternoon.
Tonight
Mostly clear, with a low around 43. Southeast wind around 6 mph.
Friday
Mostly sunny, with a high near 58. South southwest wind 3 to 5 mph.
Friday Night
A 30 percent chance of rain after 4am. Increasing clouds, with a low around 45. South wind around 6 mph.
Saturday
Rain, mainly after 10am. High near 52. South wind around 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. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain. High near 50. Chance of precipitation is 90%.
Sunday Night
Rain. Mostly cloudy, with a low around 42.
Monday
Rain likely. Mostly cloudy, with a high near 48.
Monday Night
A chance of rain. Mostly cloudy, with a low around 39.
Tuesday
A chance of rain. Mostly cloudy, with a high near 47.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 36.
Wednesday
A slight chance of rain. Partly sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.53°N 122.14°W (Elev. 873 ft)
Last Update:
7:01 am PST Feb 5, 2026
Forecast Valid:
8am PST Feb 5, 2026-6pm PST Feb 11, 2026
 
Forecast Discussion
 
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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