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

37°F

3°C

Humidity 47%
Wind Speed SW 11 MPH
Barometer 30.35 in (1027.77 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 18 Jan 11:15 AM MST
Extended Forecast for

5 Miles SSW Harlowton MT

  • Today

    Today: Mostly sunny, with a temperature falling to around 29 by 5pm. North northwest wind 18 to 28 mph, with gusts as high as 38 mph.

    High: 38 °F⇓

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 20. West northwest wind 10 to 13 mph.

    Low: 20 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 41. West wind 17 to 23 mph.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a steady temperature around 36. West wind 18 to 25 mph.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 39. West northwest wind 23 to 25 mph.

    High: 39 °F

    Decreasing
    Clouds

  • Tuesday Night

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

    Low: 23 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37. West northwest wind 11 to 17 mph.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23. West wind 8 to 14 mph.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 43. Northwest wind 15 to 17 mph.

    High: 43 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a temperature falling to around 29 by 5pm. North northwest wind 18 to 28 mph, with gusts as high as 38 mph.
Tonight
Partly cloudy, with a low around 20. West northwest wind 10 to 13 mph.
M.L.King Day
Sunny, with a high near 41. West wind 17 to 23 mph.
Monday Night
Mostly cloudy, with a steady temperature around 36. West wind 18 to 25 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 39. West northwest wind 23 to 25 mph.
Tuesday Night
Partly cloudy, with a low around 23. West northwest wind around 18 mph.
Wednesday
Mostly sunny, with a high near 37. West northwest wind 11 to 17 mph.
Wednesday Night
Partly cloudy, with a low around 23. West wind 8 to 14 mph.
Thursday
Partly sunny, with a high near 43. Northwest wind 15 to 17 mph.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 14. North wind 10 to 13 mph.
Friday
Snow likely. Mostly cloudy, with a high near 21. East northeast wind around 11 mph. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 0. East wind around 10 mph.
Saturday
A 30 percent chance of snow. Mostly cloudy and cold, with a high near 11. East southeast wind around 9 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:
10:10 am MST Jan 18, 2026
Forecast Valid:
11am MST Jan 18, 2026-6pm MST Jan 24, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation