Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

SISTERS (K6K5)

Lat: 44.30445°NLon: 121.53909°WElev: 3168.0ft.

NA

55°F

13°C

Humidity 66%
Wind Speed SSW 17 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 45°F (7°C)
Visibility NA
Last update 10 Dec 03:55 AM PST
Extended Forecast for

8 Miles NNE Mount Bachelor OR

  • Overnight

    Overnight: A 30 percent chance of rain.  Mostly cloudy, with a low around 38. Windy, with a west wind around 32 mph, with gusts as high as 50 mph.

    Low: 38 °F

    Chance Rain
    and Windy

  • Wednesday

    Wednesday: A 40 percent chance of rain, mainly before 10am.  Snow level 8000 feet. Partly sunny, with a high near 40. Windy, with a southwest wind 25 to 30 mph, with gusts as high as 46 mph.

    High: 40 °F

    Chance Rain
    and Windy

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow after 1am.  Snow level 7200 feet. Mostly cloudy, with a low around 34. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 33 mph.  Chance of precipitation is 20%.

    Low: 34 °F

    Breezy.
    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Thursday

    Thursday: A 20 percent chance of rain before 10am.  Partly sunny, with a high near 42. West wind 10 to 17 mph, with gusts as high as 25 mph.

    High: 42 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 34. Southwest wind 6 to 9 mph.

    Low: 34 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of rain. Mostly cloudy, with a low around 38. Windy, with a west wind around 32 mph, with gusts as high as 50 mph.
Wednesday
A 40 percent chance of rain, mainly before 10am. Snow level 8000 feet. Partly sunny, with a high near 40. Windy, with a southwest wind 25 to 30 mph, with gusts as high as 46 mph.
Wednesday Night
A slight chance of rain and snow after 1am. Snow level 7200 feet. Mostly cloudy, with a low around 34. Breezy, with a southwest wind 22 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Thursday
A 20 percent chance of rain before 10am. Partly sunny, with a high near 42. West wind 10 to 17 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 34. Southwest wind 6 to 9 mph.
Friday
Mostly sunny, with a high near 46.
Friday Night
Partly cloudy, with a low around 36.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
A chance of snow. Partly sunny, with a high near 40.
Sunday Night
A chance of rain and snow. Snow level 7100 feet. Mostly cloudy, with a low around 34.
Monday
Rain and snow. Snow level 7600 feet rising to 8200 feet in the afternoon. Mostly cloudy, with a high near 40.
Monday Night
Rain and snow. Snow level 7500 feet lowering to 6900 feet after midnight . Mostly cloudy, with a low around 33. Breezy.
Tuesday
Snow likely. Mostly cloudy, with a high near 35. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNE Mount Bachelor OR
 44.1°N 121.65°W (Elev. 6867 ft)
4:20 am PST Dec 10, 2025
4am PST Dec 10, 2025-6pm PST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database