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 71%
Wind Speed SSW 21 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 46°F (8°C)
Visibility NA
Last update 10 Dec 12:55 AM PST
Extended Forecast for

10 Miles SSW Sisters OR

  • Overnight

    Overnight: A 40 percent chance of rain.  Mostly cloudy, with a low around 45. Southwest wind around 16 mph, with gusts as high as 26 mph.

    Low: 45 °F

    Chance Rain

  • Wednesday

    Wednesday: A 30 percent chance of rain, mainly before 10am.  Partly sunny, with a high near 50. Southwest wind 11 to 14 mph, with gusts as high as 29 mph.

    High: 50 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 10 percent chance of rain after 4am.  Mostly cloudy, with a steady temperature around 43. Southwest wind around 10 mph, with gusts as high as 21 mph.

    Low: 43 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: A 10 percent chance of rain before 7am.  Partly sunny, with a high near 50. West wind around 6 mph.

    High: 50 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of rain. Mostly cloudy, with a low around 45. Southwest wind around 16 mph, with gusts as high as 26 mph.
Wednesday
A 30 percent chance of rain, mainly before 10am. Partly sunny, with a high near 50. Southwest wind 11 to 14 mph, with gusts as high as 29 mph.
Wednesday Night
A 10 percent chance of rain after 4am. Mostly cloudy, with a steady temperature around 43. Southwest wind around 10 mph, with gusts as high as 21 mph.
Thursday
A 10 percent chance of rain before 7am. Partly sunny, with a high near 50. West wind around 6 mph.
Thursday Night
Mostly clear, with a low around 38. Calm wind.
Friday
Mostly sunny, with a high near 53.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 54.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
A chance of rain. Partly sunny, with a high near 48.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 39.
Monday
Rain. Mostly cloudy, with a high near 48.
Monday Night
Rain, possibly mixed with snow. Mostly cloudy, with a low around 39.
Tuesday
Rain and snow likely. Snow level 5700 feet. Partly sunny, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SSW Sisters OR
 44.17°N 121.63°W (Elev. 5200 ft)
1:31 am PST Dec 10, 2025
2am PST Dec 10, 2025-6pm PST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database