Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Current conditions at

SISTERS (K6K5)

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

NA

43°F

6°C

Humidity 75%
Wind Speed N 0 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 36°F (2°C)
Visibility NA
Last update 11 Dec 04:55 AM PST
Extended Forecast for

Mount Bachelor OR

  • Today

    Today: Partly sunny, with a high near 42. West wind 13 to 18 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 42 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 32. West wind 6 to 9 mph.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 46. West wind 6 to 9 mph.

    High: 46 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 34. West wind 8 to 11 mph.

    Low: 34 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 48. Southwest wind 6 to 9 mph.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of snow after 10am.  Partly sunny, with a high near 41.

    High: 41 °F

    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: A slight chance of snow before 4am, then a chance of rain and snow.  Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

    Low: 33 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

  • Monday

    Monday: Rain, possibly mixed with snow, becoming all rain after 1pm.  Snow level 8100 feet rising to 9100 feet in the afternoon. High near 40. Chance of precipitation is 80%.

    High: 40 °F

    Rain/Snow

Detailed Forecast

Today
Partly sunny, with a high near 42. West wind 13 to 18 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 23 mph.
Tonight
Partly cloudy, with a low around 32. West wind 6 to 9 mph.
Friday
Partly sunny, with a high near 46. West wind 6 to 9 mph.
Friday Night
Partly cloudy, with a low around 34. West wind 8 to 11 mph.
Saturday
Sunny, with a high near 48. Southwest wind 6 to 9 mph.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
A 20 percent chance of snow after 10am. Partly sunny, with a high near 41.
Sunday Night
A slight chance of snow before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Monday
Rain, possibly mixed with snow, becoming all rain after 1pm. Snow level 8100 feet rising to 9100 feet in the afternoon. High near 40. Chance of precipitation is 80%.
Monday Night
Rain before 7pm, then rain and snow between 7pm and 10pm, then snow after 10pm. Mostly cloudy, with a low around 31. Breezy.
Tuesday
Snow. Mostly cloudy, with a high near 33. Breezy.
Tuesday Night
Snow. The snow could be heavy at times. Mostly cloudy, with a low around 26. Breezy.
Wednesday
Snow. The snow could be heavy at times. Mostly cloudy, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Bachelor OR
 43.99°N 121.68°W (Elev. 7638 ft)
4:20 am PST Dec 11, 2025
6am PST Dec 11, 2025-6pm PST Dec 17, 2025
 
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Additional Resources

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