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

A Couple of Fast Moving Storms Affecting Areas Along and East of the Rockies

A couple of storm systems will impact travel conditions through the first half of this weekend. Heavy snow from the mountains of the West will move into the upper Midwest and upper Great Lakes through tonight. Record warmth and Gulf moisture along and east of the Mississippi River will fuel severe thunderstorms, heavy rainfall, fog for the Tennessee Valley and deep South on Friday into Saturday. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Mostly Cloudy

38°F

3°C

Humidity 85%
Wind Speed SSE 4 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 08 Jan 08:33 AM PST
Extended Forecast for

Newcastle WA

  • Today

    Today: A chance of rain and snow showers before 10am, then rain showers likely. Mostly cloudy, with a high near 43. South southwest wind 9 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 43 °F

    Chance
    Rain/Snow
    then Showers
    Likely

  • Tonight

    Tonight: A 50 percent chance of showers, mainly between 8pm and 4am. Mostly cloudy, with a low around 40. South wind around 7 mph.

    Low: 40 °F

    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers before 10am. Mostly cloudy, with a high near 48. South wind around 7 mph.

    High: 48 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38. Southeast wind 3 to 5 mph.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 49. Southeast wind around 5 mph.

    High: 49 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

  • Sunday

    Sunday: A 50 percent chance of rain. Mostly cloudy, with a high near 49.

    High: 49 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 10am. Cloudy, with a high near 53.

    High: 53 °F

    Rain Likely

Detailed Forecast

Today
A chance of rain and snow showers before 10am, then rain showers likely. Mostly cloudy, with a high near 43. South southwest wind 9 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tonight
A 50 percent chance of showers, mainly between 8pm and 4am. Mostly cloudy, with a low around 40. South wind around 7 mph.
Friday
A 20 percent chance of showers before 10am. Mostly cloudy, with a high near 48. South wind around 7 mph.
Friday Night
Mostly cloudy, with a low around 38. Southeast wind 3 to 5 mph.
Saturday
Mostly cloudy, with a high near 49. Southeast wind around 5 mph.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 41.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 49.
Sunday Night
Rain likely. Mostly cloudy, with a low around 45.
Monday
Rain likely, mainly before 10am. Cloudy, with a high near 53.
Monday Night
A chance of rain, mainly before 4am. Mostly cloudy, with a low around 48.
Tuesday
A slight chance of rain. Mostly cloudy, with a high near 56.
Tuesday Night
Mostly cloudy, with a low around 43.
Wednesday
A slight chance of rain. Partly sunny, with a high near 53.
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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:
7:01 am PST Jan 8, 2026
Forecast Valid:
8am PST Jan 8, 2026-6pm PST Jan 14, 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