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

21°C

70°F

Humidity 40%
Wind Speed WNW 12 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 7°C (45°F)
Visibility 16 km
Last update 13 Jul 08:35 AM MDT
Extended Forecast for

5 Miles SSW Harlowton MT

  • Today

    Today: Sunny and hot, with a high near 32. West northwest wind 14 to 23 km/h.

    High: 32 °C

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 16. North northwest wind 11 to 21 km/h becoming west after midnight.

    Low: 16 °C

    Mostly Clear

  • Monday

    Monday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Sunny and hot, with a high near 32. West wind 16 to 21 km/h increasing to 29 to 34 km/h in the afternoon. Chance of precipitation is 20%.

    High: 32 °C

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 11. North wind 35 to 40 km/h decreasing to 29 to 34 km/h after midnight. Chance of precipitation is 70%.

    Low: 11 °C

    Showers
    Likely

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 15. North wind 26 to 29 km/h. Chance of precipitation is 80%.

    High: 15 °C

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 9. North northeast wind 18 to 26 km/h. Chance of precipitation is 60%.

    Low: 9 °C

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 17. East southeast wind 16 to 23 km/h. Chance of precipitation is 40%.

    High: 17 °C

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 9. East southeast wind 18 to 23 km/h decreasing to 11 to 16 km/h after midnight.

    Low: 9 °C

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 25. West southwest wind 10 to 16 km/h becoming east southeast in the afternoon.

    High: 25 °C

    Sunny

Detailed Forecast

Today
Sunny and hot, with a high near 32. West northwest wind 14 to 23 km/h.
Tonight
Mostly clear, with a low around 16. North northwest wind 11 to 21 km/h becoming west after midnight.
Monday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Sunny and hot, with a high near 32. West wind 16 to 21 km/h increasing to 29 to 34 km/h in the afternoon. Chance of precipitation is 20%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 11. North wind 35 to 40 km/h decreasing to 29 to 34 km/h after midnight. Chance of precipitation is 70%.
Tuesday
Showers and possibly a thunderstorm. High near 15. North wind 26 to 29 km/h. Chance of precipitation is 80%.
Tuesday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 9. North northeast wind 18 to 26 km/h. Chance of precipitation is 60%.
Wednesday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 17. East southeast wind 16 to 23 km/h. Chance of precipitation is 40%.
Wednesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 9. East southeast wind 18 to 23 km/h decreasing to 11 to 16 km/h after midnight.
Thursday
Sunny, with a high near 25. West southwest wind 10 to 16 km/h becoming east southeast in the afternoon.
Thursday Night
Mostly clear, with a low around 11. East wind 10 to 18 km/h becoming west northwest after midnight.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 27. West northwest wind 11 to 18 km/h becoming east in the afternoon.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 12. East northeast wind 16 to 21 km/h becoming west southwest 10 to 15 km/h after midnight.
Saturday
Sunny, with a high near 29. West southwest wind 11 to 18 km/h becoming south in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Harlowton MT
 46.38°N 109.88°W (Elev. 4488 m)
Last Update:
5:32 am MDT Jul 13, 2025
Forecast Valid:
9am MDT Jul 13, 2025-6pm MDT Jul 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