Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

SISTERS (K6K5)

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

NA

21°F

-6°C

Humidity 85%
Wind Speed N 0 MPH
Barometer 30.37 in (1028.45 mb)
Dewpoint 18°F (-8°C)
Visibility NA
Last update 28 Dec 05:55 AM PST
Extended Forecast for

8 Miles SW Sisters OR

  • Today

    Today: Mostly sunny, with a high near 33. Calm wind.

    High: 33 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40. Calm wind.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 44. Calm wind.

    High: 44 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm.  Snow level 5200 feet rising to 5900 feet in the afternoon. Partly sunny, with a high near 45. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Rain/Snow

Detailed Forecast

Today
Mostly sunny, with a high near 33. Calm wind.
Tonight
Mostly cloudy, with a low around 21. Calm wind.
Monday
Mostly sunny, with a high near 40. Calm wind.
Monday Night
Partly cloudy, with a low around 25. Calm wind.
Tuesday
Sunny, with a high near 44. Calm wind.
Tuesday Night
Mostly clear, with a low around 28.
Wednesday
Mostly sunny, with a high near 46.
Wednesday Night
Mostly cloudy, with a low around 29.
New Year's Day
A slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm. Snow level 5200 feet rising to 5900 feet in the afternoon. Partly sunny, with a high near 45. Chance of precipitation is 20%.
Thursday Night
A chance of rain before 7pm, then rain likely, possibly mixed with snow. Snow level 5500 feet. Mostly cloudy, with a low around 30.
Friday
Rain and snow likely. Partly sunny, with a high near 39.
Friday Night
A chance of snow. Mostly cloudy, with a low around 23.
Saturday
A chance of snow. Partly sunny, with a high near 39.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SW Sisters OR
 44.19°N 121.64°W (Elev. 4800 ft)
4:20 am PST Dec 28, 2025
6am PST Dec 28, 2025-6pm PST Jan 3, 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