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.

Partly Cloudy

59°F

15°C

Humidity 77%
Wind Speed NNE 5 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 16 Jun 05:15 PM MDT
Extended Forecast for

Harlowton MT

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. Steady temperature around 63. East northeast wind around 8 mph. Chance of precipitation is 80%.

    High: 63 °F

    Showers

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 47. East wind 5 to 8 mph becoming light and variable.

    Low: 47 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers between 9am and noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 73. West northwest wind 5 to 7 mph becoming east southeast in the afternoon. Chance of precipitation is 40%.

    High: 73 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly clear, with a low around 47. North wind 5 to 7 mph becoming south in the evening. Chance of precipitation is 20%.

    Low: 47 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80. West wind 10 to 15 mph.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50. West wind 6 to 13 mph becoming north after midnight.

    Low: 50 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 82. West northwest wind 7 to 13 mph becoming southeast in the afternoon.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. East wind 6 to 14 mph becoming west northwest after midnight. Chance of precipitation is 50%.

    Low: 53 °F

    Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 78. West wind 6 to 16 mph becoming east southeast in the afternoon.

    High: 78 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Steady temperature around 63. East northeast wind around 8 mph. Chance of precipitation is 80%.
Tonight
A 50 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 47. East wind 5 to 8 mph becoming light and variable.
Tuesday
A slight chance of showers between 9am and noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 73. West northwest wind 5 to 7 mph becoming east southeast in the afternoon. Chance of precipitation is 40%.
Tuesday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly clear, with a low around 47. North wind 5 to 7 mph becoming south in the evening. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 80. West wind 10 to 15 mph.
Wednesday Night
Mostly clear, with a low around 50. West wind 6 to 13 mph becoming north after midnight.
Juneteenth
Sunny, with a high near 82. West northwest wind 7 to 13 mph becoming southeast in the afternoon.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. East wind 6 to 14 mph becoming west northwest after midnight. Chance of precipitation is 50%.
Friday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 78. West wind 6 to 16 mph becoming east southeast in the afternoon.
Friday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 50. South wind 10 to 17 mph becoming north after midnight. Chance of precipitation is 50%.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 74. Northwest wind 9 to 18 mph.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 41. West northwest wind 18 to 21 mph. Chance of precipitation is 70%.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 61. West wind 17 to 24 mph. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 37. Northwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight.
Monday
Mostly sunny, with a high near 66. West southwest wind 7 to 15 mph becoming south southeast in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harlowton MT
 46.44°N 109.85°W (Elev. 4190 ft)
Last Update:
5:08 pm MDT Jun 16, 2025
Forecast Valid:
5pm MDT Jun 16, 2025-6pm MDT Jun 23, 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