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

Heavy Snow in the Northwest; Wintry Mix from the Great Lakes to Northeast

Two cold fronts will pass through the Northwest U.S. this week with the main impact being heavy mountain snow across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain to the Upper Midwest and Great Lakes today then the Northeast U.S. tonight into Wednesday. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

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

Rain

45°F

7°C

Humidity 81%
Wind Speed SSW 4 MPH
Barometer 29.73 in (1006.77 mb)
Dewpoint 39°F (4°C)
Visibility 7.00 mi
Wind Chill43°F (6°C)
Last update 06 Jan 01:00 PM PST
Extended Forecast for

2 Miles ENE Newcastle WA

  • This Afternoon

    This Afternoon: Rain. High near 42. South southwest wind 18 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 42 °F

    Rain

  • Tonight

    Tonight: Rain showers likely before 4am, then rain, possibly mixed with snow showers. Low around 35. South southwest wind 11 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain Likely
    then
    Rain/Snow

  • Wednesday

    Wednesday: Rain, possibly mixed with snow, becoming all rain after 10am. High near 39. Wind chill values between 25 and 31. South wind around 15 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 39 °F

    Rain/Snow
    then Rain

  • Wednesday Night

    Wednesday Night: Rain and snow showers. Low around 33. South southwest wind 11 to 13 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain/Snow

  • Thursday

    Thursday: Rain and snow showers, becoming all rain after 1pm. High near 42. South southwest wind around 11 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 42 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: Showers likely before 10pm, then a chance of rain after 10pm. Mostly cloudy, with a low around 38. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Showers
    Likely

  • Friday

    Friday: A 30 percent chance of rain, mainly before 10am. Mostly cloudy, with a high near 47.

    High: 47 °F

    Chance Rain

  • Friday Night

    Friday Night: A slight chance of rain after 10pm. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A chance of rain, mainly after 10am. Mostly cloudy, with a high near 49.

    High: 49 °F

    Chance Rain

Detailed Forecast

This Afternoon
Rain. High near 42. South southwest wind 18 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain showers likely before 4am, then rain, possibly mixed with snow showers. Low around 35. South southwest wind 11 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday
Rain, possibly mixed with snow, becoming all rain after 10am. High near 39. Wind chill values between 25 and 31. South wind around 15 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday Night
Rain and snow showers. Low around 33. South southwest wind 11 to 13 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday
Rain and snow showers, becoming all rain after 1pm. High near 42. South southwest wind around 11 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Showers likely before 10pm, then a chance of rain after 10pm. Mostly cloudy, with a low around 38. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 30 percent chance of rain, mainly before 10am. Mostly cloudy, with a high near 47.
Friday Night
A slight chance of rain after 10pm. Mostly cloudy, with a low around 37.
Saturday
A chance of rain, mainly after 10am. Mostly cloudy, with a high near 49.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 40.
Sunday
A chance of rain. Mostly cloudy, with a high near 47.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 40.
Monday
A chance of rain. Mostly cloudy, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Newcastle WA
 47.55°N 122.11°W (Elev. 794 ft)
Last Update:
8:29 am PST Jan 6, 2026
Forecast Valid:
1pm PST Jan 6, 2026-6pm PST Jan 12, 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