Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

SISTERS (K6K5)

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

NA

48°F

9°C

Humidity 61%
Wind Speed SSW 8 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 07 Dec 04:55 PM PST
Extended Forecast for

8 Miles NNE Mount Bachelor OR

  • Tonight

    Tonight: Rain likely, possibly mixed with snow before 7pm, then snow likely between 7pm and 1am, then rain and snow likely after 1am.  Mostly cloudy, with a low around 32. Breezy, with a west wind 18 to 22 mph, with gusts as high as 40 mph.  Chance of precipitation is 70%. Total nighttime snow accumulation of less than one inch possible.

    Low: 32 °F

    Rain/Snow
    Likely and
    Breezy

  • Monday

    Monday: Rain, possibly mixed with snow before 10am, then rain between 10am and 1pm, then rain, possibly mixed with snow after 1pm.  Snow level 7900 feet. High near 37. Breezy, with a southwest wind 21 to 26 mph, with gusts as high as 48 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Rain/Snow and
    Breezy

  • Monday Night

    Monday Night: Rain, possibly mixed with snow, becoming all rain after 1am.  Low around 36. Windy, with a southwest wind 34 to 37 mph, with gusts as high as 65 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain/Snow and
    Windy

  • Tuesday

    Tuesday: Rain before 7am, then rain, possibly mixed with snow between 7am and 10am, then rain after 10am.  High near 41. Windy, with a west wind 21 to 31 mph, with gusts as high as 60 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 41 °F

    Rain/Snow and
    Windy then
    Rain and
    Breezy

  • Tuesday Night

    Tuesday Night: Rain.  Low around 40. Windy, with a west wind 30 to 33 mph, with gusts as high as 60 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 40 °F

    Rain and
    Windy

  • Wednesday

    Wednesday: Rain.  High near 42. Windy.  Chance of precipitation is 90%.

    High: 42 °F

    Rain and
    Windy

  • Wednesday Night

    Wednesday Night: Rain likely.  Mostly cloudy, with a low around 39. Breezy.  Chance of precipitation is 70%.

    Low: 39 °F

    Rain Likely
    and Breezy

  • Thursday

    Thursday: A 50 percent chance of rain, mainly before 4pm.  Partly sunny, with a high near 41.

    High: 41 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 10pm.  Snow level 8000 feet. Partly cloudy, with a low around 34.

    Low: 34 °F

    Slight Chance
    Rain then
    Partly Cloudy

Detailed Forecast

Tonight
Rain likely, possibly mixed with snow before 7pm, then snow likely between 7pm and 1am, then rain and snow likely after 1am. Mostly cloudy, with a low around 32. Breezy, with a west wind 18 to 22 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than one inch possible.
Monday
Rain, possibly mixed with snow before 10am, then rain between 10am and 1pm, then rain, possibly mixed with snow after 1pm. Snow level 7900 feet. High near 37. Breezy, with a southwest wind 21 to 26 mph, with gusts as high as 48 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday Night
Rain, possibly mixed with snow, becoming all rain after 1am. Low around 36. Windy, with a southwest wind 34 to 37 mph, with gusts as high as 65 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Tuesday
Rain before 7am, then rain, possibly mixed with snow between 7am and 10am, then rain after 10am. High near 41. Windy, with a west wind 21 to 31 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tuesday Night
Rain. Low around 40. Windy, with a west wind 30 to 33 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
Rain. High near 42. Windy. Chance of precipitation is 90%.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 39. Breezy. Chance of precipitation is 70%.
Thursday
A 50 percent chance of rain, mainly before 4pm. Partly sunny, with a high near 41.
Thursday Night
A 20 percent chance of rain before 10pm. Snow level 8000 feet. Partly cloudy, with a low around 34.
Friday
Mostly sunny, with a high near 45.
Friday Night
Mostly clear, with a low around 33.
Saturday
A chance of rain and snow. Snow level 6900 feet. Sunny, with a high near 44.
Saturday Night
A chance of rain and snow. Partly cloudy, with a low around 33.
Sunday
A chance of snow. Partly sunny, with a high near 39.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNE Mount Bachelor OR
 44.1°N 121.65°W (Elev. 6867 ft)
3:20 pm PST Dec 7, 2025
6pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
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Additional Resources

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