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

9°F

-13°C

Humidity 80%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 4°F (-16°C)
Visibility NA
Last update 28 Dec 09:06 AM PST
Extended Forecast for

15 Miles N Mazama WA

  • Today

    Today: A 10 percent chance of snow after 4pm. Partly sunny, with a high near 20. Wind chill values as low as zero. West wind 6 to 8 mph.

    High: 20 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Tonight

    Tonight: A 20 percent chance of snow before 10pm. Mostly cloudy, with a low around 15. West wind around 9 mph.

    Low: 15 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 25. Southwest wind 5 to 8 mph.

    High: 25 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 19. Southwest wind 6 to 9 mph.

    Low: 19 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 26. Southwest wind 7 to 10 mph.

    High: 26 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after 10pm. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Slight Chance
    Snow

  • New Year's Day

    New Year's Day: A 30 percent chance of snow. Mostly cloudy, with a high near 25.

    High: 25 °F

    Chance Snow

Detailed Forecast

Today
A 10 percent chance of snow after 4pm. Partly sunny, with a high near 20. Wind chill values as low as zero. West wind 6 to 8 mph.
Tonight
A 20 percent chance of snow before 10pm. Mostly cloudy, with a low around 15. West wind around 9 mph.
Monday
Partly sunny, with a high near 25. Southwest wind 5 to 8 mph.
Monday Night
Mostly cloudy, with a low around 19. Southwest wind 6 to 9 mph.
Tuesday
Partly sunny, with a high near 26. Southwest wind 7 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 17.
Wednesday
Partly sunny, with a high near 27.
Wednesday Night
A 20 percent chance of snow after 10pm. Mostly cloudy, with a low around 20.
New Year's Day
A 30 percent chance of snow. Mostly cloudy, with a high near 25.
Thursday Night
Snow likely, mainly after 10pm. Mostly cloudy, with a low around 16. Chance of precipitation is 60%.
Friday
Snow likely. Mostly cloudy, with a high near 20. Chance of precipitation is 70%.
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 19.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles N Mazama WA
 48.82°N 120.48°W (Elev. 7648 ft)
Last Update:
8:52 am PST Dec 28, 2025
Forecast Valid:
9am PST Dec 28, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation