Frigid Cold in the East; Snow Continues in the Great Lakes

A frigid cold airmass will continue to bring colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected to be tied or broken across the Southeast and Florida. Periods snow will continue downwind of the Great Lakes and in portions of interior New England through Tuesday afternoon, with several inches of snowfall accumulation expected. Read More >

Current conditions at

HORSE THIEF (HORM8)

Lat: 46.42581°NLon: 108.6745°WElev: 3414.0ft.

NA

59°F

15°C

Humidity 35%
Wind Speed W 9 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 11 Nov 09:39 AM MST
Extended Forecast for

Roundup MT

  • Veterans Day

    Veterans Day: Sunny, with a high near 65. West wind 8 to 16 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 32. Light west southwest wind.

    Low: 32 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 62. Calm wind becoming southwest around 6 mph in the morning.

    High: 62 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36. Calm wind becoming southwest around 5 mph after midnight.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 68. Southwest wind 6 to 9 mph.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. Southwest wind 6 to 9 mph.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers.  Partly sunny, with a high near 64. West wind 9 to 14 mph.

    High: 64 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers before 11pm.  Mostly cloudy, with a low around 36. West wind 6 to 8 mph.

    Low: 36 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 56. West wind 7 to 10 mph.

    High: 56 °F

    Mostly Sunny

Detailed Forecast

Veterans Day
Sunny, with a high near 65. West wind 8 to 16 mph.
Tonight
Increasing clouds, with a low around 32. Light west southwest wind.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 62. Calm wind becoming southwest around 6 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 36. Calm wind becoming southwest around 5 mph after midnight.
Thursday
Sunny, with a high near 68. Southwest wind 6 to 9 mph.
Thursday Night
Partly cloudy, with a low around 42. Southwest wind 6 to 9 mph.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 64. West wind 9 to 14 mph.
Friday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 36. West wind 6 to 8 mph.
Saturday
Mostly sunny, with a high near 56. West wind 7 to 10 mph.
Saturday Night
Partly cloudy, with a low around 30. West southwest wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 58. Southwest wind 5 to 7 mph.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 31. South southwest wind 3 to 5 mph.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 52. West southwest wind around 8 mph becoming north northwest in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Roundup MT
 46.45°N 108.53°W (Elev. 3219 ft)
10:08 am MST Nov 11, 2025
10am MST Nov 11, 2025-6pm MST Nov 17, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database