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.

Overcast

59°F

15°C

Humidity 77%
Wind Speed NNE 12 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 15 Jul 02:35 AM MDT
Extended Forecast for

5 Miles SSW Harlowton MT

  • Overnight

    Overnight: A 50 percent chance of showers and thunderstorms. Cloudy, with a steady temperature around 58. North wind 16 to 22 mph.

    Low: 58 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. Patchy fog before 9am. Temperature falling to around 52 by 4pm. North northeast wind 14 to 20 mph becoming east in the morning. Chance of precipitation is 90%.

    High: 57 °F⇓

    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 9pm, then showers likely. Low around 47. East northeast wind 10 to 17 mph. Chance of precipitation is 90%.

    Low: 47 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 3pm. Patchy fog before noon. Otherwise, cloudy, with a high near 61. East wind 10 to 14 mph. Chance of precipitation is 50%.

    High: 61 °F

    Chance
    Showers and
    Patchy Fog
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 48. East southeast wind 6 to 14 mph.

    Low: 48 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Mostly sunny, with a high near 79. Southeast wind 6 to 10 mph.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52. East wind 7 to 11 mph becoming northwest after midnight.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78. Northwest wind 7 to 11 mph becoming east in the afternoon.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 53. East southeast wind 5 to 14 mph becoming southwest after midnight.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of showers and thunderstorms. Cloudy, with a steady temperature around 58. North wind 16 to 22 mph.
Tuesday
Showers and possibly a thunderstorm. Patchy fog before 9am. Temperature falling to around 52 by 4pm. North northeast wind 14 to 20 mph becoming east in the morning. Chance of precipitation is 90%.
Tuesday Night
Showers and possibly a thunderstorm before 9pm, then showers likely. Low around 47. East northeast wind 10 to 17 mph. Chance of precipitation is 90%.
Wednesday
A chance of showers, with thunderstorms also possible after 3pm. Patchy fog before noon. Otherwise, cloudy, with a high near 61. East wind 10 to 14 mph. Chance of precipitation is 50%.
Wednesday Night
Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 48. East southeast wind 6 to 14 mph.
Thursday
Mostly sunny, with a high near 79. Southeast wind 6 to 10 mph.
Thursday Night
Mostly clear, with a low around 52. East wind 7 to 11 mph becoming northwest after midnight.
Friday
Sunny, with a high near 78. Northwest wind 7 to 11 mph becoming east in the afternoon.
Friday Night
Partly cloudy, with a low around 53. East southeast wind 5 to 14 mph becoming southwest after midnight.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 84. West wind 6 to 14 mph becoming south in the afternoon.
Saturday Night
Partly cloudy, with a low around 55. Southwest wind 8 to 13 mph becoming east in the evening.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83. West northwest wind 9 to 13 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 54. North northeast wind 8 to 13 mph becoming west northwest after midnight.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80. West northwest wind 10 to 14 mph.
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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 ft)
Last Update:
2:02 am MDT Jul 15, 2025
Forecast Valid:
3am MDT Jul 15, 2025-6pm MDT Jul 21, 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