Frigid Airmass to Bring Significantly Colder Temperatures; Heavy Lake-effect Snow; Fire Concerns Across the Central Gulf Coast

A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Temperatures will tie or break many records across the Southeast through tonight. Moderate to heavy lake effect snow will continue downwind of the Great Lakes. Gusty winds and dry conditions will support an elevated fire weather threat across the Central Gulf Coast. Read More >

Current conditions at

Comertown Turn-Off MT-5 MP 13.4 (MTCOM)

Lat: 48.81°NLon: 104.2529°WElev: 2359.0ft.

NA

39°F

4°C

Humidity 66%
Wind Speed WSW 13 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Wind Chill31°F (-1°C)
Last update 10 Nov 01:00 PM MST
Extended Forecast for

Westby MT

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 47. West southwest wind 10 to 13 mph.

    High: 47 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 20 percent chance of rain before 8pm.  Mostly cloudy, with a low around 27. West northwest wind 10 to 13 mph.

    Low: 27 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Veterans Day

    Veterans Day: Sunny, with a high near 47. Breezy, with a west northwest wind 13 to 22 mph, with gusts as high as 31 mph.

    High: 47 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 23. West wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 23 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 44. West wind around 8 mph becoming south southwest in the afternoon.

    High: 44 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25. East southeast wind around 6 mph.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 49. Southeast wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 49 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32. Southeast wind 11 to 13 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 49. Southeast wind 11 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 49 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 47. West southwest wind 10 to 13 mph.
Tonight
A 20 percent chance of rain before 8pm. Mostly cloudy, with a low around 27. West northwest wind 10 to 13 mph.
Veterans Day
Sunny, with a high near 47. Breezy, with a west northwest wind 13 to 22 mph, with gusts as high as 31 mph.
Tuesday Night
Partly cloudy, with a low around 23. West wind 10 to 13 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 44. West wind around 8 mph becoming south southwest in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 25. East southeast wind around 6 mph.
Thursday
Mostly sunny, with a high near 49. Southeast wind 6 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Mostly cloudy, with a low around 32. Southeast wind 11 to 13 mph, with gusts as high as 20 mph.
Friday
Mostly cloudy, with a high near 49. Southeast wind 11 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 28. West wind around 11 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 42. Northwest wind 11 to 18 mph, with gusts as high as 26 mph.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
Westby MT
 48.87°N 104.05°W (Elev. 1991 ft)
10:02 am MST Nov 10, 2025
1pm MST Nov 10, 2025-6pm MST Nov 16, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database