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

57°F

14°C

Humidity 71%
Wind Speed S 20 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 48°F (9°C)
Visibility NA
Last update 09 Dec 10:55 PM PST
Extended Forecast for

2 Miles NNE Mount Bachelor OR

  • Tonight

    Tonight: Rain likely, mainly before 1am.  Mostly cloudy, with a low around 39. West wind around 14 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain Likely

  • Wednesday

    Wednesday: A 30 percent chance of rain before 10am.  Partly sunny, with a high near 43. West wind 11 to 15 mph, with gusts as high as 28 mph.

    High: 43 °F

    Chance Rain
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after 10pm.  Snow level 7100 feet. Mostly cloudy, with a low around 33. West wind around 11 mph, with gusts as high as 21 mph.

    Low: 33 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: A 20 percent chance of rain.  Partly sunny, with a high near 44. West wind 6 to 9 mph.

    High: 44 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 32. Southwest wind 3 to 6 mph.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain and snow, mainly after 4am.  Snow level 7000 feet lowering to 6500 feet after midnight . Partly cloudy, with a low around 32. Chance of precipitation is 30%.

    Low: 32 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Rain likely, mainly before 1am. Mostly cloudy, with a low around 39. West wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A 30 percent chance of rain before 10am. Partly sunny, with a high near 43. West wind 11 to 15 mph, with gusts as high as 28 mph.
Wednesday Night
A 20 percent chance of rain after 10pm. Snow level 7100 feet. Mostly cloudy, with a low around 33. West wind around 11 mph, with gusts as high as 21 mph.
Thursday
A 20 percent chance of rain. Partly sunny, with a high near 44. West wind 6 to 9 mph.
Thursday Night
Partly cloudy, with a low around 32. Southwest wind 3 to 6 mph.
Friday
Mostly sunny, with a high near 47.
Friday Night
Partly cloudy, with a low around 33.
Saturday
Mostly sunny, with a high near 48.
Saturday Night
A chance of rain and snow, mainly after 4am. Snow level 7000 feet lowering to 6500 feet after midnight . Partly cloudy, with a low around 32. Chance of precipitation is 30%.
Sunday
A chance of rain and snow before 7am, then a chance of snow between 7am and 10am, then a chance of rain and snow after 10am. Snow level rising to 6700 feet in the afternoon. Partly sunny, with a high near 41.
Sunday Night
A chance of rain and snow. Snow level 6800 feet. Mostly cloudy, with a low around 32.
Monday
Rain and snow likely. Snow level 6900 feet rising to 7600 feet in the afternoon. Mostly cloudy, with a high near 40.
Monday Night
Rain and snow. Snow level 7400 feet lowering to 6600 feet after midnight . Mostly cloudy, with a low around 31.
Tuesday
Snow likely. Mostly cloudy, with a high near 37.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Mount Bachelor OR
 44.01°N 121.68°W (Elev. 6207 ft)
10:45 pm PST Dec 9, 2025
11pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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