Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Current conditions at

Big Timber Airport (K6S0)

Lat: 45.80647°NLon: 109.97826°WElev: 4494.0ft.

Partly Cloudy

50°F

10°C

Humidity 71%
Wind Speed N 0 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 17 Jun 07:25 AM MDT
Extended Forecast for

Big Timber MT

  • Today

    Today: Sunny, with a high near 75. West wind 10 to 17 mph.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 46. Northwest wind 10 to 15 mph becoming light and variable  in the evening.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 78. Light west southwest wind becoming west 8 to 13 mph in the morning.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47. North wind 8 to 13 mph becoming light north northeast  after midnight.

    Low: 47 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 79. Light and variable wind becoming east 6 to 11 mph in the morning.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50. East wind 8 to 13 mph becoming light and variable  after midnight.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 80. Calm wind becoming west 5 to 9 mph in the afternoon.

    High: 80 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers.  Mostly cloudy, with a low around 51. West wind around 10 mph.  Chance of precipitation is 40%.

    Low: 51 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 77. West wind 6 to 9 mph.

    High: 77 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 75. West wind 10 to 17 mph.
Tonight
Partly cloudy, with a low around 46. Northwest wind 10 to 15 mph becoming light and variable in the evening.
Thursday
Mostly sunny, with a high near 78. Light west southwest wind becoming west 8 to 13 mph in the morning.
Thursday Night
Partly cloudy, with a low around 47. North wind 8 to 13 mph becoming light north northeast after midnight.
Juneteenth
Mostly sunny, with a high near 79. Light and variable wind becoming east 6 to 11 mph in the morning.
Friday Night
Mostly cloudy, with a low around 50. East wind 8 to 13 mph becoming light and variable after midnight.
Saturday
A 50 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 80. Calm wind becoming west 5 to 9 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 51. West wind around 10 mph. Chance of precipitation is 40%.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 77. West wind 6 to 9 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 47. North northeast wind 8 to 13 mph becoming light after midnight.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 75. Calm wind becoming east 5 to 9 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 47. East wind 5 to 10 mph becoming light and variable after midnight.
Tuesday
Sunny, with a high near 81. Calm wind becoming east northeast 5 to 9 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Big Timber MT
 45.84°N 109.94°W (Elev. 4199 ft)
5:22 am MDT Jun 17, 2026
8am MDT Jun 17, 2026-6pm MDT Jun 23, 2026
 
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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