National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 79%
Wind Speed N 0 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 21°F (-6°C)
Visibility NA
Last update 27 Dec 10:55 PM PST
Extended Forecast for

8 Miles NNW Mount Bachelor OR

  • Tonight

    Tonight: A 30 percent chance of snow. Mostly cloudy, with a steady temperature around 15. North wind around 7 mph.

    Low: 15 °F

    Chance Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 26. East wind around 8 mph.

    High: 26 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 21. South wind 11 to 15 mph, with gusts as high as 20 mph.

    Low: 21 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 30. South wind 8 to 15 mph becoming north in the afternoon. Winds could gust as high as 18 mph.

    High: 30 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. North wind 14 to 16 mph, with gusts as high as 20 mph.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 10 percent chance of snow after 4am. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Tonight
A 30 percent chance of snow. Mostly cloudy, with a steady temperature around 15. North wind around 7 mph.
Sunday
Mostly sunny, with a high near 26. East wind around 8 mph.
Sunday Night
Partly cloudy, with a low around 21. South wind 11 to 15 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 30. South wind 8 to 15 mph becoming north in the afternoon. Winds could gust as high as 18 mph.
Monday Night
Partly cloudy, with a low around 25. North wind 14 to 16 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Partly cloudy, with a low around 25.
Wednesday
Mostly sunny, with a high near 34.
Wednesday Night
A 10 percent chance of snow after 4am. Mostly cloudy, with a low around 24.
New Year's Day
Snow likely, mainly after 4pm. Partly sunny, with a high near 30.
Thursday Night
Snow. Mostly cloudy, with a low around 23.
Friday
Snow. Mostly cloudy, with a high near 24.
Friday Night
Snow likely. Mostly cloudy, with a low around 17.
Saturday
A chance of snow. Mostly cloudy, with a high near 24.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNW Mount Bachelor OR
 44.08°N 121.76°W (Elev. 8196 ft)
Last Update:
9:32 pm PST Dec 27, 2025
Forecast Valid:
11pm PST Dec 27, 2025-6pm PST Jan 3, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation