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

73°F

23°C

Humidity 38%
Wind Speed N 0 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 10 Sep 02:15 PM MDT
Extended Forecast for

Harlowton MT

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 83. East southeast wind 7 to 10 mph.

    High: 83 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers after 3am. Mostly cloudy, with a low around 52. East southeast wind 7 to 10 mph becoming west northwest after midnight. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 78. West wind 9 to 11 mph becoming east in the afternoon. Chance of precipitation is 50%.

    High: 78 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 47. West wind 7 to 11 mph. Chance of precipitation is 40%.

    Low: 47 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 74. West wind 7 to 9 mph. Chance of precipitation is 50%.

    High: 74 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 47. West wind 6 to 10 mph. Chance of precipitation is 50%.

    Low: 47 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 73. West northwest wind around 7 mph. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 46. North wind 6 to 8 mph becoming west southwest in the evening. Chance of precipitation is 30%.

    Low: 46 °F

    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 75. West wind around 10 mph.

    High: 75 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 83. East southeast wind 7 to 10 mph.
Tonight
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers after 3am. Mostly cloudy, with a low around 52. East southeast wind 7 to 10 mph becoming west northwest after midnight. Chance of precipitation is 20%.
Thursday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 78. West wind 9 to 11 mph becoming east in the afternoon. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 47. West wind 7 to 11 mph. Chance of precipitation is 40%.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 74. West wind 7 to 9 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 47. West wind 6 to 10 mph. Chance of precipitation is 50%.
Saturday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 73. West northwest wind around 7 mph. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 46. North wind 6 to 8 mph becoming west southwest in the evening. Chance of precipitation is 30%.
Sunday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 75. West wind around 10 mph.
Sunday Night
Partly cloudy, with a low around 46. West wind 6 to 9 mph.
Monday
A 30 percent chance of showers. Mostly sunny, with a high near 77. West wind around 10 mph.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 45. North northwest wind 8 to 10 mph.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 72. West northwest wind 8 to 10 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harlowton MT
 46.44°N 109.85°W (Elev. 4190 ft)
Last Update:
1:47 pm MDT Sep 10, 2025
Forecast Valid:
2pm MDT Sep 10, 2025-6pm MDT Sep 16, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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