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

Big Timber Airport (K6S0)

Lat: 45.80647°NLon: 109.97826°WElev: 4494.0ft.

freezing fog

27°F

-3°C

Humidity 92%
Wind Speed W 8 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 25°F (-4°C)
Visibility -0.25 mi
Wind Chill19°F (-7°C)
Last update 20 Nov 07:15 AM MST
Extended Forecast for

Harlowton MT

  • Today

    Today: Patchy fog before 9am. Otherwise, sunny, with a high near 52. West wind around 5 mph becoming light and variable.

    High: 52 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 28. West wind 5 to 13 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 54. West wind 14 to 18 mph.

    High: 54 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33. West wind 14 to 18 mph.

    Low: 33 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 55. West wind 18 to 20 mph.

    High: 55 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30. West wind 11 to 13 mph.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 58. West wind around 14 mph.

    High: 58 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33. West wind around 10 mph.

    Low: 33 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of rain and snow showers between 11am and 5pm, then a slight chance of snow showers after 5pm. Mostly sunny, with a high near 53. West wind 11 to 16 mph increasing to 19 to 24 mph in the afternoon. Chance of precipitation is 20%.

    High: 53 °F

    Slight Chance
    Rain/Snow

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, sunny, with a high near 52. West wind around 5 mph becoming light and variable.
Tonight
Mostly clear, with a low around 28. West wind 5 to 13 mph.
Friday
Sunny, with a high near 54. West wind 14 to 18 mph.
Friday Night
Partly cloudy, with a low around 33. West wind 14 to 18 mph.
Saturday
Mostly sunny, with a high near 55. West wind 18 to 20 mph.
Saturday Night
Partly cloudy, with a low around 30. West wind 11 to 13 mph.
Sunday
Mostly sunny, with a high near 58. West wind around 14 mph.
Sunday Night
Partly cloudy, with a low around 33. West wind around 10 mph.
Monday
A slight chance of rain and snow showers between 11am and 5pm, then a slight chance of snow showers after 5pm. Mostly sunny, with a high near 53. West wind 11 to 16 mph increasing to 19 to 24 mph in the afternoon. Chance of precipitation is 20%.
Monday Night
A slight chance of snow before 8pm, then a slight chance of rain between 8pm and 11pm, then a slight chance of snow after 11pm. Partly cloudy, with a low around 21. West northwest wind 18 to 23 mph. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of snow. Partly sunny, with a high near 35. West northwest wind 14 to 16 mph.
Tuesday Night
Partly cloudy, with a low around 13. West northwest wind 6 to 9 mph.
Wednesday
Mostly sunny, with a high near 34. West wind around 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harlowton MT
 46.44°N 109.85°W (Elev. 4190 ft)
Last Update:
7:34 am MST Nov 20, 2025
Forecast Valid:
7am MST Nov 20, 2025-6pm MST Nov 26, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation