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.

Clear

32°F

0°C

Humidity 54%
Wind Speed WSW 13 MPH
Barometer 29.64 in (1003.73 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 07 Jan 06:35 PM MST
Extended Forecast for

Harlowton MT

  • Tonight

    Tonight: Partly cloudy, with a low around 21. West wind 12 to 17 mph becoming west 5 to 10 mph after midnight.

    Low: 21 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 36. West wind 7 to 12 mph increasing to 19 to 24 mph in the afternoon.

    High: 36 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 21. West wind 21 to 23 mph.

    Low: 21 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 38. West wind 18 to 26 mph.

    High: 38 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a steady temperature around 33. West wind around 23 mph.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 47. West wind 22 to 26 mph.

    High: 47 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33. West wind 18 to 21 mph.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 52. West wind 18 to 23 mph.

    High: 52 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34. West wind around 18 mph.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 21. West wind 12 to 17 mph becoming west 5 to 10 mph after midnight.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 36. West wind 7 to 12 mph increasing to 19 to 24 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 21. West wind 21 to 23 mph.
Friday
Mostly sunny, with a high near 38. West wind 18 to 26 mph.
Friday Night
Mostly cloudy, with a steady temperature around 33. West wind around 23 mph.
Saturday
Mostly sunny, with a high near 47. West wind 22 to 26 mph.
Saturday Night
Mostly cloudy, with a low around 33. West wind 18 to 21 mph.
Sunday
Partly sunny, with a high near 52. West wind 18 to 23 mph.
Sunday Night
Partly cloudy, with a low around 34. West wind around 18 mph.
Monday
Mostly sunny, with a high near 52. West wind 18 to 26 mph.
Monday Night
Mostly cloudy, with a low around 39. West wind around 22 mph.
Tuesday
Partly sunny, with a high near 53. West wind 22 to 24 mph.
Tuesday Night
Mostly cloudy, with a low around 34. West wind 15 to 17 mph.
Wednesday
Mostly sunny, with a high near 54. West wind 16 to 23 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:
4:09 pm MST Jan 7, 2026
Forecast Valid:
6pm MST Jan 7, 2026-6pm MST Jan 14, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation