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.

Mist

54°F

12°C

Humidity 93%
Wind Speed NE 10 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 52°F (11°C)
Visibility 1.75 mi
Last update 15 Jul 05:05 PM MDT
Extended Forecast for

5 Miles SSW Harlowton MT

  • This Afternoon

    This Afternoon: Rain and possibly a thunderstorm. Patchy fog. Steady temperature around 53. East northeast wind around 16 mph. Chance of precipitation is 100%.

    High: 53 °F

    Rain and
    Patchy Fog

  • Tonight

    Tonight: Rain and possibly a thunderstorm before midnight, then rain likely. Patchy fog. Low around 47. North northeast wind 10 to 15 mph. Chance of precipitation is 100%.

    Low: 47 °F

    Rain and
    Patchy Fog
    then Rain
    Likely and
    Patchy Fog

  • Wednesday

    Wednesday: A 40 percent chance of rain, mainly between noon and 3pm. Areas of fog before noon. Otherwise, mostly cloudy, with a high near 60. Northeast wind 10 to 14 mph becoming east southeast in the afternoon.

    High: 60 °F

    Chance Rain
    and Areas Fog

  • Wednesday Night

    Wednesday Night: Areas of fog after midnight. Otherwise, cloudy during the evening, then partly cloudy overnight, with a low around 47. Southeast wind 6 to 14 mph.

    Low: 47 °F

    Mostly Cloudy
    then Areas
    Fog

  • Thursday

    Thursday: Mostly sunny, with a high near 80. South wind 5 to 10 mph.

    High: 80 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 9pm, then a chance of rain between 9pm and midnight. Mostly clear, with a low around 52. North northeast wind 6 to 11 mph becoming northwest after midnight. Chance of precipitation is 30%.

    Low: 52 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78. Northwest wind 6 to 10 mph becoming east in the afternoon.

    High: 78 °F

    Sunny

  • Friday Night

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

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain and thunderstorms after noon. Sunny, with a high near 85. West southwest wind 6 to 11 mph becoming south in the afternoon.

    High: 85 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Rain and possibly a thunderstorm. Patchy fog. Steady temperature around 53. East northeast wind around 16 mph. Chance of precipitation is 100%.
Tonight
Rain and possibly a thunderstorm before midnight, then rain likely. Patchy fog. Low around 47. North northeast wind 10 to 15 mph. Chance of precipitation is 100%.
Wednesday
A 40 percent chance of rain, mainly between noon and 3pm. Areas of fog before noon. Otherwise, mostly cloudy, with a high near 60. Northeast wind 10 to 14 mph becoming east southeast in the afternoon.
Wednesday Night
Areas of fog after midnight. Otherwise, cloudy during the evening, then partly cloudy overnight, with a low around 47. Southeast wind 6 to 14 mph.
Thursday
Mostly sunny, with a high near 80. South wind 5 to 10 mph.
Thursday Night
A chance of showers and thunderstorms before 9pm, then a chance of rain between 9pm and midnight. Mostly clear, with a low around 52. North northeast wind 6 to 11 mph becoming northwest after midnight. Chance of precipitation is 30%.
Friday
Sunny, with a high near 78. Northwest wind 6 to 10 mph becoming east in the afternoon.
Friday Night
Partly cloudy, with a low around 53. East wind 5 to 14 mph becoming south after midnight.
Saturday
A 20 percent chance of rain and thunderstorms after noon. Sunny, with a high near 85. West southwest wind 6 to 11 mph becoming south in the afternoon.
Saturday Night
A 20 percent chance of rain and thunderstorms before midnight. Partly cloudy, with a low around 54. West southwest wind 9 to 13 mph becoming northeast in the evening.
Sunday
A 20 percent chance of rain and thunderstorms. Mostly sunny, with a high near 83. West wind 9 to 13 mph.
Sunday Night
A 20 percent chance of rain and thunderstorms. Partly cloudy, with a low around 54. West northwest wind 8 to 14 mph.
Monday
A 20 percent chance of rain and thunderstorms. Mostly sunny, with a high near 81. West wind 9 to 15 mph.
Monday Night
A 30 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 53. Northwest wind 8 to 14 mph becoming northeast in the evening.
Tuesday
A chance of rain and thunderstorms. Partly sunny, with a high near 75. Northwest wind 8 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:
5:08 pm MDT Jul 15, 2025
Forecast Valid:
5pm MDT Jul 15, 2025-6pm MDT Jul 22, 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