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

NCSB (NCSW1)

Lat: 48.42528°NLon: 120.14194°WElev: 1697.0ft.

NA

28°F

-2°C

Humidity 44%
Wind Speed SSE 4 MPH
Barometer NA
Dewpoint 9°F (-13°C)
Visibility NA
Wind Chill23°F (-5°C)
Last update 27 Dec 03:06 PM PST
Extended Forecast for

19 Miles NNE Mazama WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 3. Wind chill values as low as -12. Northwest wind 6 to 11 mph.

    Low: 3 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 10 percent chance of snow after 4pm. Mostly sunny, with a high near 21. Wind chill values as low as -3. West wind around 6 mph.

    High: 21 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before 10pm. Mostly cloudy, with a low around 15. West wind 5 to 7 mph.

    Low: 15 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 27. Southwest wind around 5 mph.

    High: 27 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 19. West wind around 5 mph.

    Low: 19 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 28.

    High: 28 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 21.

    Low: 21 °F

    Slight Chance
    Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 3. Wind chill values as low as -12. Northwest wind 6 to 11 mph.
Sunday
A 10 percent chance of snow after 4pm. Mostly sunny, with a high near 21. Wind chill values as low as -3. West wind around 6 mph.
Sunday Night
A 20 percent chance of snow before 10pm. Mostly cloudy, with a low around 15. West wind 5 to 7 mph.
Monday
Mostly cloudy, with a high near 27. Southwest wind around 5 mph.
Monday Night
Mostly cloudy, with a low around 19. West wind around 5 mph.
Tuesday
Mostly cloudy, with a high near 28.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
Partly sunny, with a high near 30.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 21.
New Year's Day
A 30 percent chance of snow, mainly after 10am. Partly sunny, with a high near 27.
Thursday Night
Snow likely. Mostly cloudy, with a low around 16. Chance of precipitation is 60%.
Friday
Snow likely. Mostly cloudy, with a high near 21. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 12.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 20.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
19 Miles NNE Mazama WA
 48.87°N 120.3°W (Elev. 6631 ft)
Last Update:
2:42 pm PST Dec 27, 2025
Forecast Valid:
3pm PST Dec 27, 2025-6pm PST Jan 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation