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

57°F

14°C

Humidity 44%
Wind Speed N 0 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 35°F (2°C)
Visibility NA
Last update 11 Dec 01:55 PM PST
Extended Forecast for

5 Miles NNE Mount Bachelor OR

  • Tonight

    Tonight: Partly cloudy, with a steady temperature around 37. Calm wind becoming west 5 to 7 mph in the evening.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 49. West wind 5 to 7 mph.

    High: 49 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a steady temperature around 40. West wind 7 to 9 mph.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 53. Southwest wind 5 to 7 mph.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. Southwest wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of rain and snow before 1pm, then a slight chance of rain between 1pm and 4pm.  Snow level rising to 7200 feet in the afternoon. Partly sunny, with a high near 46. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of rain, mainly after 4am.  Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

  • Monday

    Monday: Rain, mainly after 10am.  High near 45. Chance of precipitation is 80%.

    High: 45 °F

    Rain

  • Monday Night

    Monday Night: Rain before 1am, then rain, possibly mixed with snow.  Low around 35. Chance of precipitation is 90%.

    Low: 35 °F

    Rain then
    Rain/Snow

Detailed Forecast

Tonight
Partly cloudy, with a steady temperature around 37. Calm wind becoming west 5 to 7 mph in the evening.
Friday
Partly sunny, with a high near 49. West wind 5 to 7 mph.
Friday Night
Mostly cloudy, with a steady temperature around 40. West wind 7 to 9 mph.
Saturday
Sunny, with a high near 53. Southwest wind 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 36. Southwest wind 8 to 10 mph, with gusts as high as 21 mph.
Sunday
A slight chance of rain and snow before 1pm, then a slight chance of rain between 1pm and 4pm. Snow level rising to 7200 feet in the afternoon. Partly sunny, with a high near 46. Chance of precipitation is 20%.
Sunday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 36.
Monday
Rain, mainly after 10am. High near 45. Chance of precipitation is 80%.
Monday Night
Rain before 1am, then rain, possibly mixed with snow. Low around 35. Chance of precipitation is 90%.
Tuesday
Rain and snow. Snow level 6900 feet lowering to 6400 feet in the afternoon . Mostly cloudy, with a high near 39.
Tuesday Night
Snow. The snow could be heavy at times. Mostly cloudy, with a low around 26. Breezy.
Wednesday
Snow. Mostly cloudy, with a high near 31.
Wednesday Night
Snow. The snow could be heavy at times. Mostly cloudy, with a low around 26.
Thursday
Snow. The snow could be heavy at times. Mostly cloudy, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Mount Bachelor OR
 44.04°N 121.63°W (Elev. 6352 ft)
2:30 pm PST Dec 11, 2025
3pm PST Dec 11, 2025-6pm PST Dec 18, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database