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

Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Current conditions at

HARLEM (HRLM)

Lat: 48.54333°NLon: 108.83472°WElev: 2358.0ft.

NA

26°F

-3°C

Humidity 57%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 13°F (-11°C)
Visibility NA
Last update 29 Dec 12:00 PM MST
Extended Forecast for

Chinook MT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 23. West wind around 14 mph, with gusts as high as 22 mph.

    High: 23 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 16. West wind 8 to 10 mph.

    Low: 16 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35. West northwest wind 6 to 8 mph.

    High: 35 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 17. South southeast wind 5 to 9 mph becoming west after midnight.

    Low: 17 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 32. West wind 5 to 8 mph becoming east northeast in the morning.

    High: 32 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 13. East southeast wind around 6 mph becoming light and variable in the evening.

    Low: 13 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 30. West northwest wind 3 to 5 mph.

    High: 30 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 18. East wind 3 to 6 mph.

    Low: 18 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 23. West wind around 14 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 16. West wind 8 to 10 mph.
Tuesday
Mostly sunny, with a high near 35. West northwest wind 6 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 17. South southeast wind 5 to 9 mph becoming west after midnight.
Wednesday
Sunny, with a high near 32. West wind 5 to 8 mph becoming east northeast in the morning.
Wednesday Night
Partly cloudy, with a low around 13. East southeast wind around 6 mph becoming light and variable in the evening.
New Year's Day
Mostly sunny, with a high near 30. West northwest wind 3 to 5 mph.
Thursday Night
Mostly cloudy, with a low around 18. East wind 3 to 6 mph.
Friday
Partly sunny, with a high near 35.
Friday Night
Mostly cloudy, with a low around 19.
Saturday
Partly sunny, with a high near 36.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
Partly sunny, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chinook MT
 48.6°N 109.23°W (Elev. 2408 ft)
Last Update:
12:31 pm MST Dec 29, 2025
Forecast Valid:
12pm MST Dec 29, 2025-6pm MST Jan 4, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation