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

52°F

11°C

Humidity 62%
Wind Speed N 0 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 39°F (4°C)
Visibility NA
Last update 07 Dec 10:55 AM PST
Extended Forecast for

12 Miles WSW Sisters OR

  • This Afternoon

    This Afternoon: Rain, possibly mixed with snow, becoming all rain after 4pm.  High near 38. West wind 18 to 20 mph, with gusts as high as 37 mph.  Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow

  • Tonight

    Tonight: Rain likely before 7pm, then rain, possibly mixed with snow.  Snow level 6700 feet. Low around 35. West wind 14 to 18 mph, with gusts as high as 38 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain/Snow

  • Monday

    Monday: Rain.  High near 40. Breezy, with a southwest wind 16 to 24 mph, with gusts as high as 50 mph.  Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    High: 40 °F

    Rain and
    Breezy

  • Monday Night

    Monday Night: Rain before 10pm, then rain, possibly mixed with snow between 10pm and 1am, then rain after 1am.  Low around 37. Windy, with a southwest wind around 30 mph, with gusts as high as 60 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain/Snow and
    Windy

  • Tuesday

    Tuesday: Rain before 7am, then rain, possibly mixed with snow between 7am and 1pm, then rain after 1pm.  High near 43. Breezy, with a west wind 17 to 25 mph, with gusts as high as 55 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 43 °F

    Rain/Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: Rain.  Low around 41. Breezy.  Chance of precipitation is 100%.

    Low: 41 °F

    Rain and
    Breezy

  • Wednesday

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

    High: 42 °F

    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain.  Low around 40. Chance of precipitation is 80%.

    Low: 40 °F

    Rain

  • Thursday

    Thursday: Rain likely, mainly before 10am.  Partly sunny, with a high near 43. Chance of precipitation is 60%.

    High: 43 °F

    Rain Likely

Detailed Forecast

This Afternoon
Rain, possibly mixed with snow, becoming all rain after 4pm. High near 38. West wind 18 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Rain likely before 7pm, then rain, possibly mixed with snow. Snow level 6700 feet. Low around 35. West wind 14 to 18 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday
Rain. High near 40. Breezy, with a southwest wind 16 to 24 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Monday Night
Rain before 10pm, then rain, possibly mixed with snow between 10pm and 1am, then rain after 1am. Low around 37. Windy, with a southwest wind around 30 mph, with gusts as high as 60 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 1pm, then rain after 1pm. High near 43. Breezy, with a west wind 17 to 25 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tuesday Night
Rain. Low around 41. Breezy. Chance of precipitation is 100%.
Wednesday
Rain. High near 42. Breezy. Chance of precipitation is 90%.
Wednesday Night
Rain. Low around 40. Chance of precipitation is 80%.
Thursday
Rain likely, mainly before 10am. Partly sunny, with a high near 43. Chance of precipitation is 60%.
Thursday Night
A chance of rain before 10pm. Partly cloudy, with a low around 35.
Friday
Mostly sunny, with a high near 48.
Friday Night
Mostly clear, with a low around 36.
Saturday
A chance of rain. Snow level 6800 feet. Mostly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles WSW Sisters OR
 44.24°N 121.78°W (Elev. 5843 ft)
11:27 am PST Dec 7, 2025
12pm PST Dec 7, 2025-6pm PST Dec 13, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database