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

52°F

11°C

Humidity 37%
Wind Speed W 11 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 12 Nov 11:35 PM MST
Extended Forecast for

Harlowton MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 36. West wind around 10 mph.

    Low: 36 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 67. West southwest wind 9 to 14 mph.

    High: 67 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 39. Southwest wind 13 to 17 mph.

    Low: 39 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 11am. Partly sunny, with a high near 62. West southwest wind 21 to 30 mph.

    High: 62 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 38. West wind 18 to 24 mph.

    Low: 38 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 57. West wind 14 to 22 mph.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 32. West wind 8 to 14 mph.

    Low: 32 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 54. West wind 6 to 8 mph becoming southeast in the afternoon.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 32. East southeast wind 6 to 8 mph becoming west after midnight.

    Low: 32 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 36. West wind around 10 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 67. West southwest wind 9 to 14 mph.
Thursday Night
Partly cloudy, with a low around 39. Southwest wind 13 to 17 mph.
Friday
A 20 percent chance of showers after 11am. Partly sunny, with a high near 62. West southwest wind 21 to 30 mph.
Friday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 38. West wind 18 to 24 mph.
Saturday
Mostly sunny, with a high near 57. West wind 14 to 22 mph.
Saturday Night
Partly cloudy, with a low around 32. West wind 8 to 14 mph.
Sunday
Mostly sunny, with a high near 54. West wind 6 to 8 mph becoming southeast in the afternoon.
Sunday Night
A 30 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 32. East southeast wind 6 to 8 mph becoming west after midnight.
Monday
A chance of rain showers before 8am, then a chance of rain and snow showers. Mostly cloudy, with a high near 46. West wind 9 to 13 mph. Chance of precipitation is 30%.
Monday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 25. North northwest wind around 11 mph. Chance of precipitation is 40%.
Tuesday
A 20 percent chance of snow showers. Mostly cloudy, with a high near 39. Northwest wind around 11 mph.
Tuesday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 21. West wind around 10 mph.
Wednesday
Mostly sunny, with a high near 41. West wind around 11 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harlowton MT
 46.44°N 109.82°W (Elev. 4199 ft)
Last Update:
10:47 pm MST Nov 12, 2025
Forecast Valid:
12am MST Nov 13, 2025-6pm MST Nov 19, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation