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

27°F

-3°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 23°F (-5°C)
Visibility NA
Last update 28 Dec 02:55 AM PST
Extended Forecast for

Sisters OR

  • Overnight

    Overnight: Patchy fog.  Otherwise, mostly cloudy early, then becoming mostly clear, with a steady temperature around 21. Calm wind.

    Low: 21 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 37. Calm wind.

    High: 37 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 20. Calm wind.

    Low: 20 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41. Calm wind.

    High: 41 °F

    Mostly Sunny

  • Monday Night

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

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy early, then becoming mostly clear, with a steady temperature around 21. Calm wind.
Sunday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 37. Calm wind.
Sunday Night
Mostly cloudy, with a low around 20. Calm wind.
Monday
Mostly sunny, with a high near 41. Calm wind.
Monday Night
Mostly cloudy, with a low around 21. Calm wind.
Tuesday
Sunny, with a high near 44.
Tuesday Night
Mostly clear, with a low around 24.
Wednesday
Mostly sunny, with a high near 50.
Wednesday Night
Mostly cloudy, with a low around 27.
New Year's Day
Mostly cloudy, with a high near 49.
Thursday Night
Rain likely. Mostly cloudy, with a low around 30.
Friday
Rain and snow likely. Mostly cloudy, with a high near 46.
Friday Night
A chance of rain and snow. Snow level 3800 feet lowering to 3300 feet after midnight . Mostly cloudy, with a low around 24.
Saturday
A chance of rain and snow. Partly sunny, with a high near 44.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Sisters OR
 44.29°N 121.55°W (Elev. 3199 ft)
3:05 am PST Dec 28, 2025
3am PST Dec 28, 2025-6pm PST Jan 3, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database