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 24 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 45°F (7°C)
Visibility NA
Last update 10 Dec 02:55 AM PST
Extended Forecast for

Mount Bachelor OR

  • Overnight

    Overnight: A 30 percent chance of rain.  Snow level 8500 feet. Mostly cloudy, with a low around 37. Windy, with a west wind around 30 mph.

    Low: 37 °F

    Chance Rain
    and Windy

  • Wednesday

    Wednesday: A chance of rain, possibly mixing with snow after 10am, then gradually ending.  Snow level 8100 feet. Mostly cloudy, with a high near 40. Breezy, with a west wind 18 to 26 mph, with gusts as high as 30 mph.  Chance of precipitation is 30%.

    High: 40 °F

    Chance
    Rain/Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: A slight chance of snow after 1am, mixing with rain after 4am.  Mostly cloudy, with a steady temperature around 35. West wind 17 to 20 mph.  Chance of precipitation is 20%.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Thursday

    Thursday: A slight chance of rain and snow before 10am.  Snow level 8100 feet. Partly sunny, with a high near 42. West wind 8 to 15 mph.  Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31. Southwest wind 6 to 9 mph.

    Low: 31 °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 32.

    Low: 32 °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 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of rain. Snow level 8500 feet. Mostly cloudy, with a low around 37. Windy, with a west wind around 30 mph.
Wednesday
A chance of rain, possibly mixing with snow after 10am, then gradually ending. Snow level 8100 feet. Mostly cloudy, with a high near 40. Breezy, with a west wind 18 to 26 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Wednesday Night
A slight chance of snow after 1am, mixing with rain after 4am. Mostly cloudy, with a steady temperature around 35. West wind 17 to 20 mph. Chance of precipitation is 20%.
Thursday
A slight chance of rain and snow before 10am. Snow level 8100 feet. Partly sunny, with a high near 42. West wind 8 to 15 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 31. Southwest wind 6 to 9 mph.
Friday
Mostly sunny, with a high near 46.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
A chance of snow. Partly sunny, with a high near 40.
Sunday Night
Snow likely. Mostly cloudy, with a low around 32.
Monday
Rain and snow. Snow level rising to 8200 feet in the afternoon. Mostly cloudy, with a high near 39.
Monday Night
Rain and snow. Mostly cloudy, with a low around 32. Breezy.
Tuesday
Snow likely. Mostly cloudy, with a high near 34. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Bachelor OR
 43.99°N 121.68°W (Elev. 7638 ft)
3:25 am PST Dec 10, 2025
4am PST Dec 10, 2025-6pm PST Dec 16, 2025
 
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Additional Resources

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Hourly Weather Forecast

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