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

HORSE THIEF (HORM8)

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

NA

28°F

-2°C

Humidity 80%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill22°F (-6°C)
Last update 26 Nov 07:39 AM MST
Extended Forecast for

Roundup MT

  • Today

    Today: A 40 percent chance of snow showers, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 43. Southwest wind around 6 mph becoming calm in the afternoon. Total daytime snow accumulation of less than a half inch possible.

    High: 43 °F

    Chance Snow
    Showers then
    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 20. Calm wind.

    Low: 20 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thanksgiving Day

    Thanksgiving Day: A slight chance of snow showers between 11am and 2pm, then a chance of rain and snow showers. Patchy fog before 8am. Otherwise, cloudy, with a high near 40. Light and variable wind. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 40 °F

    Chance
    Rain/Snow and
    Patchy Fog

  • Thursday Night

    Thursday Night: A chance of rain and snow showers before 8pm, then a chance of snow showers. Cloudy, with a low around 23. Calm wind. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Friday

    Friday: Snow showers. High near 34. North wind 6 to 14 mph. Chance of precipitation is 80%. New snow accumulation of around 2 inches.

    High: 34 °F

    Snow Showers

  • Friday Night

    Friday Night: Snow likely, mainly before 11pm. Cloudy, with a low around 7. North wind 7 to 11 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 7 °F

    Snow Likely
    then Chance
    Snow

  • Saturday

    Saturday: A 30 percent chance of snow, mainly before 11am. Partly sunny, with a high near 22. North wind around 6 mph becoming south southeast in the morning. Little or no snow accumulation expected.

    High: 22 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 1. Calm wind becoming southwest around 5 mph after midnight.

    Low: 1 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 24. Southwest wind around 6 mph.

    High: 24 °F

    Mostly Sunny

Detailed Forecast

Today
A 40 percent chance of snow showers, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 43. Southwest wind around 6 mph becoming calm in the afternoon. Total daytime snow accumulation of less than a half inch possible.
Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 20. Calm wind.
Thanksgiving Day
A slight chance of snow showers between 11am and 2pm, then a chance of rain and snow showers. Patchy fog before 8am. Otherwise, cloudy, with a high near 40. Light and variable wind. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday Night
A chance of rain and snow showers before 8pm, then a chance of snow showers. Cloudy, with a low around 23. Calm wind. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Friday
Snow showers. High near 34. North wind 6 to 14 mph. Chance of precipitation is 80%. New snow accumulation of around 2 inches.
Friday Night
Snow likely, mainly before 11pm. Cloudy, with a low around 7. North wind 7 to 11 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday
A 30 percent chance of snow, mainly before 11am. Partly sunny, with a high near 22. North wind around 6 mph becoming south southeast in the morning. Little or no snow accumulation expected.
Saturday Night
Partly cloudy, with a low around 1. Calm wind becoming southwest around 5 mph after midnight.
Sunday
Mostly sunny, with a high near 24. Southwest wind around 6 mph.
Sunday Night
Mostly cloudy, with a low around 8. West southwest wind around 6 mph.
Monday
Partly sunny, with a high near 34. West southwest wind around 6 mph.
Monday Night
Mostly cloudy, with a low around 17. Southwest wind around 7 mph.
Tuesday
A 30 percent chance of snow. Mostly cloudy, with a high near 39. West southwest wind around 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Roundup MT
 46.45°N 108.56°W (Elev. 3202 ft)
Last Update:
4:28 am MST Nov 26, 2025
Forecast Valid:
8am MST Nov 26, 2025-6pm MST Dec 2, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation