Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Hazardous Weather Conditions

Current conditions at

SISTERS (K6K5)

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

NA

25°F

-4°C

Humidity 85%
Wind Speed N 0 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 21°F (-6°C)
Visibility NA
Last update 21 Jan 01:55 PM PST
Extended Forecast for

12 Miles WSW Sisters OR

  • Tonight

    Tonight: Partly cloudy, with a steady temperature around 35. Light southwest wind.

    Low: 35 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 40. Light west wind.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 19. Calm wind.

    Low: 19 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 26. Northeast wind 6 to 10 mph, with gusts as high as 22 mph.

    High: 26 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 15. East wind around 10 mph, with gusts as high as 22 mph.

    Low: 15 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 10 percent chance of snow after 4am.  Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Tonight
Partly cloudy, with a steady temperature around 35. Light southwest wind.
Thursday
Mostly sunny, with a high near 40. Light west wind.
Thursday Night
Mostly cloudy, with a low around 19. Calm wind.
Friday
Sunny, with a high near 26. Northeast wind 6 to 10 mph, with gusts as high as 22 mph.
Friday Night
Mostly clear, with a low around 15. East wind around 10 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 34.
Saturday Night
Mostly clear, with a low around 22.
Sunday
Mostly sunny, with a high near 39.
Sunday Night
A 10 percent chance of snow after 4am. Mostly cloudy, with a low around 26.
Monday
A slight chance of snow before 10am. Partly sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 42.
Tuesday Night
A slight chance of snow. Mostly cloudy, with a low around 29.
Wednesday
A chance of snow. Partly sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles WSW Sisters OR
 44.24°N 121.78°W (Elev. 5843 ft)
2:31 pm PST Jan 21, 2026
3pm PST Jan 21, 2026-6pm PST Jan 28, 2026
 
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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