Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

STEHEKIN-AIRSTRIP (STRW1)

Lat: 48.34694°NLon: 120.72028°WElev: 1230.0ft.

NA

40°F

4°C

Humidity 99%
Wind Speed WNW 1 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 08 Dec 04:01 PM PST
Extended Forecast for

10 Miles ESE Trinity WA

Flood Watch December 8, 04:36pm until December 11, 04:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 8, 04:36pm until December 11, 04:00pm

    NOW until 4:00pm Thu

    Flood Watch

  • This Afternoon

    High: 35 °F

    Heavy Rain
    and Breezy

  • Tonight

    Tonight: Snow, possibly mixed with rain, becoming all snow after 11pm. The rain and snow could be heavy at times.  Low around 27. Windy, with a west wind 23 to 29 mph, with gusts as high as 47 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 27 °F

    Rain/Snow and
    Breezy then
    Heavy Snow
    and Windy

  • Tuesday

    Tuesday: A chance of snow before 7am, then a chance of snow after 1pm.  Increasing clouds, with a high near 30. Breezy, with a west wind 19 to 24 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 38 mph.  Chance of precipitation is 50%. New snow accumulation of 1 to 3 inches possible.

    High: 30 °F

    Chance Snow
    and Breezy

  • Tuesday Night

    Tuesday Night: Snow before 1am, then rain and snow. The rain and snow could be heavy at times.  Low around 28. West wind 6 to 11 mph.  Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

    Low: 28 °F

    Heavy Snow
    then
    Rain/Snow

  • Wednesday

    Wednesday: Snow, possibly mixed with rain, becoming all snow after 10am. The rain and snow could be heavy at times.  High near 35. Breezy, with a west wind 16 to 18 mph.  Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

    High: 35 °F

    Rain/Snow and
    Breezy then
    Heavy Snow

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times.  Low around 31. Chance of precipitation is 80%. New snow accumulation of 5 to 9 inches possible.

    Low: 31 °F

    Heavy Snow

  • Thursday

    Thursday: Snow.  High near 33. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 33 °F

    Snow

  • Thursday Night

    Thursday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance Snow

Detailed Forecast

This Afternoon
Rain. The rain could be heavy at times. High near 35. Breezy, with a west wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Snow, possibly mixed with rain, becoming all snow after 11pm. The rain and snow could be heavy at times. Low around 27. Windy, with a west wind 23 to 29 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Tuesday
A chance of snow before 7am, then a chance of snow after 1pm. Increasing clouds, with a high near 30. Breezy, with a west wind 19 to 24 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 50%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
Snow before 1am, then rain and snow. The rain and snow could be heavy at times. Low around 28. West wind 6 to 11 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.
Wednesday
Snow, possibly mixed with rain, becoming all snow after 10am. The rain and snow could be heavy at times. High near 35. Breezy, with a west wind 16 to 18 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.
Wednesday Night
Snow. The snow could be heavy at times. Low around 31. Chance of precipitation is 80%. New snow accumulation of 5 to 9 inches possible.
Thursday
Snow. High near 33. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 30.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 35.
Friday Night
A 30 percent chance of snow, mainly before 10pm. Mostly cloudy, with a low around 31.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 34.
Saturday Night
Snow likely. Mostly cloudy, with a low around 29. Chance of precipitation is 70%.
Sunday
Snow likely. Mostly cloudy, with a high near 30. Chance of precipitation is 70%.
Sunday Night
Snow likely. Mostly cloudy, with a low around 28. Chance of precipitation is 60%.
Monday
Snow likely. Mostly cloudy, with a high near 32. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles ESE Trinity WA
 48°N 120.66°W (Elev. 6201 ft)
3:17 pm PST Dec 8, 2025
4pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
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Additional Resources

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