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

37°F

3°C

Humidity 60%
Wind Speed WSW 17 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 25°F (-4°C)
Visibility NA
Wind Chill27°F (-3°C)
Last update 27 Dec 01:55 PM PST
Extended Forecast for

8 Miles SSW Sisters OR

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 31. Northwest wind around 5 mph.

    High: 31 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of snow after 10pm.  Mostly cloudy, with a low around 18. Calm wind.

    Low: 18 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 34. Calm wind.

    High: 34 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Partly 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.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly 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

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 31. Northwest wind around 5 mph.
Tonight
A 20 percent chance of snow after 10pm. Mostly cloudy, with a low around 18. Calm wind.
Sunday
Mostly sunny, with a high near 34. Calm wind.
Sunday Night
Partly cloudy, with a low around 22. Calm wind.
Monday
Mostly sunny, with a high near 40. Calm wind.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Mostly sunny, with a high near 43.
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 30.
New Year's Day
A chance of rain and snow. Snow level 5600 feet. Partly sunny, with a high near 44.
Thursday Night
Rain and snow likely. Snow level 5500 feet lowering to 4800 feet after midnight . Mostly cloudy, with a low around 29.
Friday
Snow likely. Partly sunny, with a high near 39.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SSW Sisters OR
 44.17°N 121.61°W (Elev. 4600 ft)
2:31 pm PST Dec 27, 2025
2pm PST Dec 27, 2025-6pm PST Jan 2, 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