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

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Current conditions at

Stevens Pass - Tye Mill (STS54)

Lat: 47.73163°NLon: 121.0853°WElev: 5180.0ft.

NA

30°F

-1°C

Humidity NA
Wind Speed E 0 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

12 Miles WSW Trinity WA

  • Today

    Today: Snow. The snow could be heavy at times. High near 30. West wind 10 to 17 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 5 to 9 inches possible.

    High: 30 °F

    Heavy Snow

  • Tonight

    Tonight: Snow. The snow could be heavy at times. Low around 29. Windy, with a west wind around 26 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 29 °F

    Heavy Snow
    and Windy

  • Monday

    Monday: Snow before 4pm, then rain, possibly mixed with snow. The rain and snow could be heavy at times. High near 34. Southwest wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

    High: 34 °F

    Heavy Snow
    then
    Rain/Snow

  • Monday Night

    Monday Night: Rain, possibly mixed with snow, becoming all snow after 7pm. The rain and snow could be heavy at times. Low around 25. Windy, with a west wind 25 to 30 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    Low: 25 °F

    Windy.
    Rain/Snow
    then Heavy
    Snow

  • Tuesday

    Tuesday: Snow. High near 28. Breezy, with a west wind 11 to 20 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 28 °F

    Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: Snow. The snow could be heavy at times. Low around 26. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

    Low: 26 °F

    Heavy Snow

  • Wednesday

    Wednesday: Snow. High near 31. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 31 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow likely. Mostly cloudy, with a low around 23. Chance of precipitation is 70%.

    Low: 23 °F

    Snow Likely

  • Thursday

    Thursday: Snow likely. Mostly cloudy, with a high near 27. Chance of precipitation is 60%.

    High: 27 °F

    Snow Likely

Detailed Forecast

Today
Snow. The snow could be heavy at times. High near 30. West wind 10 to 17 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 5 to 9 inches possible.
Tonight
Snow. The snow could be heavy at times. Low around 29. Windy, with a west wind around 26 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Monday
Snow before 4pm, then rain, possibly mixed with snow. The rain and snow could be heavy at times. High near 34. Southwest wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.
Monday Night
Rain, possibly mixed with snow, becoming all snow after 7pm. The rain and snow could be heavy at times. Low around 25. Windy, with a west wind 25 to 30 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Tuesday
Snow. High near 28. Breezy, with a west wind 11 to 20 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Tuesday Night
Snow. The snow could be heavy at times. Low around 26. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.
Wednesday
Snow. High near 31. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 23. Chance of precipitation is 70%.
Thursday
Snow likely. Mostly cloudy, with a high near 27. Chance of precipitation is 60%.
Thursday Night
Snow likely. Mostly cloudy, with a low around 25. Chance of precipitation is 70%.
Friday
Snow likely. Mostly cloudy, with a high near 31. Chance of precipitation is 70%.
Friday Night
Snow likely. Mostly cloudy, with a low around 29. Chance of precipitation is 60%.
Saturday
Snow likely. Mostly cloudy, with a high near 30. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles WSW Trinity WA
 48°N 121.1°W (Elev. 6503 ft)
Last Update:
10:57 am PST Dec 7, 2025
Forecast Valid:
11am PST Dec 7, 2025-6pm PST Dec 13, 2025
 
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