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 >

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 30.21 in (1023.03 mb)
Dewpoint 21°F (-6°C)
Visibility NA
Last update 21 Jan 01:55 AM PST
Extended Forecast for

3 Miles WSW Camp Sherman OR

  • Overnight

    Overnight: Cloudy, with a steady temperature around 21. Calm wind.

    Low: 21 °F

    Cloudy

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 41. Calm wind.

    High: 41 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy during the early evening, then becoming cloudy, with a low around 16. Calm wind.

    Low: 16 °F

    Becoming
    Cloudy

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 45. Calm wind.

    High: 45 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 17. Calm wind.

    Low: 17 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 14.

    Low: 14 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

Detailed Forecast

Overnight
Cloudy, with a steady temperature around 21. Calm wind.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 41. Calm wind.
Wednesday Night
Partly cloudy during the early evening, then becoming cloudy, with a low around 16. Calm wind.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 45. Calm wind.
Thursday Night
Mostly cloudy, with a low around 17. Calm wind.
Friday
Sunny, with a high near 34.
Friday Night
Mostly clear, with a low around 14.
Saturday
Sunny, with a high near 41.
Saturday Night
Mostly clear, with a low around 18.
Sunday
Mostly sunny, with a high near 47.
Sunday Night
A slight chance of rain and snow. Snow level 3500 feet. Mostly cloudy, with a low around 24.
Monday
A slight chance of rain and snow. Snow level 3500 feet rising to 4300 feet in the afternoon. Partly sunny, with a high near 47.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
A slight chance of rain. Partly sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Camp Sherman OR
 44.45°N 121.68°W (Elev. 3087 ft)
2:31 am PST Jan 21, 2026
2am PST Jan 21, 2026-6pm PST Jan 27, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database