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 76%
Wind Speed SSW 13 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 48°F (9°C)
Visibility NA
Last update 09 Dec 08:55 PM PST
Extended Forecast for

5 Miles WNW Mount Bachelor OR

  • Tonight

    Tonight: Rain, mainly before 1am.  Low around 41. West wind around 11 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Rain

  • Wednesday

    Wednesday: Rain likely, mainly before 10am.  Mostly cloudy, with a high near 45. West wind around 10 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Rain Likely
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain, mainly after 7pm.  Mostly cloudy, with a low around 35. West wind around 8 mph.

    Low: 35 °F

    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain.  Partly sunny, with a high near 46. Southwest wind around 6 mph.

    High: 46 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 35. Light southwest wind.

    Low: 35 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 10pm.  Partly cloudy, with a low around 34.

    Low: 34 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Rain, mainly before 1am. Low around 41. West wind around 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 45. West wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 30 percent chance of rain, mainly after 7pm. Mostly cloudy, with a low around 35. West wind around 8 mph.
Thursday
A 20 percent chance of rain. Partly sunny, with a high near 46. Southwest wind around 6 mph.
Thursday Night
Partly cloudy, with a low around 35. Light southwest wind.
Friday
Mostly sunny, with a high near 49.
Friday Night
Partly cloudy, with a low around 35.
Saturday
Mostly sunny, with a high near 50.
Saturday Night
A 20 percent chance of rain after 10pm. Partly cloudy, with a low around 34.
Sunday
A chance of rain and snow before 10am, then a chance of rain. Snow level 6200 feet rising to 6700 feet in the afternoon. Partly sunny, with a high near 43.
Sunday Night
Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 35.
Monday
Rain, possibly mixed with snow. Mostly cloudy, with a high near 42.
Monday Night
Rain, possibly mixed with snow. Mostly cloudy, with a low around 34.
Tuesday
Rain and snow likely. Snow level 5800 feet. Mostly cloudy, with a high near 39.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Mount Bachelor OR
 44.02°N 121.78°W (Elev. 5479 ft)
9:15 pm PST Dec 9, 2025
9pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

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