Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

SAWMILL FLATS (MEFW1)

Lat: 46.9675°NLon: 121.08444°WElev: 3000.0ft.

NA

46°F

8°C

Humidity 99%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 08 Dec 07:25 PM PST
Extended Forecast for

6 Miles SSE Chinook Pass WA

Flood Watch until December 12, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until December 12, 07:00am

    NOW until 7:00am Fri

    Flood Watch

  • Tonight

    Low: 29 °F

    Windy. Heavy
    Rain then
    Rain/Snow

  • Tuesday

    Tuesday: Snow.  High near 38. West wind 12 to 17 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 28 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 38 °F

    Snow

  • Tuesday Night

    Tuesday Night: Rain, possibly mixed with snow, becoming all rain after 7pm. The rain could be heavy at times.  Temperature falling to near 34 by 8pm, then rising to around 41 during the remainder of the night. Breezy, with a southwest wind 13 to 18 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 41 mph.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 34 °F

    Rain/Snow
    then Heavy
    Rain and
    Breezy

  • Wednesday

    Wednesday: Rain and snow. The rain could be heavy at times.  High near 40. Breezy, with a west wind 18 to 25 mph, with gusts as high as 41 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain, possibly mixed with snow.  Low around 35. West wind around 21 mph, with gusts as high as 36 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain/Snow

  • Thursday

    Thursday: Rain and snow.  High near 38. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 38 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: Rain and snow likely, mainly before 10pm.  Mostly cloudy, with a low around 35. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain/Snow
    Likely

  • Friday

    Friday: A chance of rain and snow.  Mostly cloudy, with a high near 39. Chance of precipitation is 40%.

    High: 39 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Rain before 1am, then snow, possibly mixed with rain. The rain could be heavy at times. Low around 29. Windy, with a southwest wind 26 to 33 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
Snow. High near 38. West wind 12 to 17 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
Rain, possibly mixed with snow, becoming all rain after 7pm. The rain could be heavy at times. Temperature falling to near 34 by 8pm, then rising to around 41 during the remainder of the night. Breezy, with a southwest wind 13 to 18 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday
Rain and snow. The rain could be heavy at times. High near 40. Breezy, with a west wind 18 to 25 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday Night
Rain, possibly mixed with snow. Low around 35. West wind around 21 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Rain and snow. High near 38. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
Rain and snow likely, mainly before 10pm. Mostly cloudy, with a low around 35. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 40%.
Friday Night
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Saturday
Rain likely, possibly mixed with snow, mainly after 4pm. Partly sunny, with a high near 39.
Saturday Night
Rain and snow. Mostly cloudy, with a low around 31.
Sunday
Snow. Mostly cloudy, with a high near 33.
Sunday Night
Snow likely. Mostly cloudy, with a low around 30.
Monday
Snow. Mostly cloudy, with a high near 36.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSE Chinook Pass WA
 46.8°N 121.45°W (Elev. 6066 ft)
3:20 pm PST Dec 8, 2025
7pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
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Additional Resources

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Hourly Weather Forecast

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