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.

Mostly Cloudy

37°F

3°C

Humidity 44%
Wind Speed WSW 11 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 18 Jan 03:55 PM MST
Extended Forecast for

5 Miles SSW Harlowton MT

  • Tonight

    Tonight: Partly cloudy, with a low around 20. North wind 9 to 14 mph becoming west northwest after midnight.

    Low: 20 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 41. West wind 18 to 23 mph.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a steady temperature around 36. West wind 17 to 24 mph.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 39. West northwest wind 25 to 28 mph, with gusts as high as 38 mph.

    High: 39 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 23. West northwest wind 18 to 22 mph.

    Low: 23 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37. West northwest wind 16 to 23 mph.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23. West wind around 11 mph.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 43. West wind 13 to 15 mph becoming north in the afternoon.

    High: 43 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 14. North northeast wind 10 to 13 mph.

    Low: 14 °F

    Chance Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 20. North wind 9 to 14 mph becoming west northwest after midnight.
M.L.King Day
Sunny, with a high near 41. West wind 18 to 23 mph.
Monday Night
Mostly cloudy, with a steady temperature around 36. West wind 17 to 24 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 39. West northwest wind 25 to 28 mph, with gusts as high as 38 mph.
Tuesday Night
Partly cloudy, with a low around 23. West northwest wind 18 to 22 mph.
Wednesday
Mostly sunny, with a high near 37. West northwest wind 16 to 23 mph.
Wednesday Night
Partly cloudy, with a low around 23. West wind around 11 mph.
Thursday
Partly sunny, with a high near 43. West wind 13 to 15 mph becoming north in the afternoon.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 14. North northeast wind 10 to 13 mph.
Friday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 21. Northeast wind 8 to 10 mph. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 0. Northeast wind 7 to 10 mph.
Saturday
A 30 percent chance of snow. Mostly cloudy and cold, with a high near 11. North northeast wind 8 to 10 mph becoming southwest in the morning.
Saturday Night
Mostly cloudy, with a low around -2. North wind around 9 mph becoming west southwest after midnight.
Sunday
A 20 percent chance of snow. Partly sunny, with a high near 22. West wind 11 to 13 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Harlowton MT
 46.38°N 109.88°W (Elev. 4488 ft)
Last Update:
4:10 pm MST Jan 18, 2026
Forecast Valid:
4pm MST Jan 18, 2026-6pm MST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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