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 >

Hazardous Weather Conditions

Current conditions at

Renton Municipal Airport (KRNT)

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

Clear

43°F

6°C

Humidity 93%
Wind Speed N 6 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 05 Feb 07:35 AM PST
Extended Forecast for

Newcastle WA

Dense Fog Advisory until February 5, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until February 5, 09:00am

    NOW until 9:00am Thu

    Dense Fog Advisory

  • Today

    High: 61 °F

    Fog then
    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 42. South southeast wind 3 to 5 mph.

    Low: 42 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 60. Light south wind.

    High: 60 °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 54. South wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 48. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Rain

  • Sunday

    Sunday: Rain. High near 52. Chance of precipitation is 80%.

    High: 52 °F

    Rain

  • Sunday Night

    Sunday Night: Rain. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Rain

Detailed Forecast

Today
Widespread fog before 8am. Otherwise, mostly sunny, with a high near 61. Light and variable wind.
Tonight
Mostly clear, with a low around 42. South southeast wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 60. Light south wind.
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 54. South 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 48. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain. High near 52. Chance of precipitation is 80%.
Sunday Night
Rain. Mostly cloudy, with a low around 43.
Monday
Rain likely. 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 50.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 37.
Wednesday
A slight chance of rain. Partly sunny, with a high near 51.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.56°N 122.18°W (Elev. 207 ft)
Last Update:
7:01 am PST Feb 5, 2026
Forecast Valid:
7am PST Feb 5, 2026-6pm PST Feb 11, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation