Severe Thunderstorms and Heavy Rainfall Today from the Central Plains into the Tennessee Valley

Severe thunderstorms capable of damaging winds will be possible from the Ozark Plateau east into portions of the Southeast today. Rounds of heavy thunderstorms ahead of a slow moving front will continue locally heavy rainfall and scattered flash flooding potential from the Ozarks to the Ohio and Tennessee Valleys today. Read More >

Current conditions at

DERBY MOUNTAIN (DBYM8)

Lat: 45.57722°NLon: 109.87889°WElev: 6600.0ft.

NA

79°F

26°C

Humidity 12%
Wind Speed SSW 6 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Heat Index78°F (26°C)
Last update 11 Jul 11:35 PM MDT
Extended Forecast for

13 Miles S Big Timber MT

Extreme Heat Warning July 12, 12:15am until July 14, 12:00am
Red Flag Warning July 12, 09:00am until July 12, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
Red Flag Warning
  •  
    Extreme Heat Warning July 12, 12:15am until July 14, 12:00am

    NOW until 12:00am Tue

    Extreme Heat Warning

  • Overnight

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 102. Light and variable wind becoming south southwest 6 to 11 mph in the afternoon.

    High: 102 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 70. Southwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 70 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 92. Light and variable wind becoming east 8 to 13 mph in the morning.

    High: 92 °F

    Hot

  • Monday Night

    Monday Night: Isolated thunderstorms before 9pm.  Partly cloudy, with a low around 69. East wind 8 to 13 mph becoming light and variable  after midnight.  Chance of precipitation is 10%.

    Low: 69 °F

    Isolated
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny and hot, with a high near 91. Calm wind becoming east northeast 5 to 9 mph in the afternoon.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly before midnight.  Mostly cloudy, with a low around 67. Northeast wind 5 to 9 mph becoming calm  after midnight.

    Low: 67 °F

    Chance
    T-storms then
    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers, then showers and possibly a thunderstorm after noon.  High near 84. Calm wind becoming north northeast 5 to 8 mph in the afternoon.  Chance of precipitation is 80%.

    High: 84 °F

    Slight Chance
    Showers then
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 69. South southwest wind 6 to 10 mph.
Sunday
Sunny and hot, with a high near 102. Light and variable wind becoming south southwest 6 to 11 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 70. Southwest wind 5 to 7 mph becoming calm after midnight.
Monday
Sunny and hot, with a high near 92. Light and variable wind becoming east 8 to 13 mph in the morning.
Monday Night
Isolated thunderstorms before 9pm. Partly cloudy, with a low around 69. East wind 8 to 13 mph becoming light and variable after midnight. Chance of precipitation is 10%.
Tuesday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny and hot, with a high near 91. Calm wind becoming east northeast 5 to 9 mph in the afternoon.
Tuesday Night
A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 67. Northeast wind 5 to 9 mph becoming calm after midnight.
Wednesday
A slight chance of showers, then showers and possibly a thunderstorm after noon. High near 84. Calm wind becoming north northeast 5 to 8 mph in the afternoon. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 64. East southeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 60%.
Thursday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86. Light and variable wind becoming east southeast 5 to 10 mph in the afternoon.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. East southeast wind 5 to 10 mph becoming light and variable after midnight.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Light and variable wind becoming north northwest 5 to 9 mph in the morning.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. North northwest wind 5 to 10 mph becoming light and variable after midnight.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Light and variable wind becoming northeast 5 to 10 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles S Big Timber MT
 45.65°N 109.91°W (Elev. 5420 ft)
7:18 pm MDT Jul 11, 2026
12am MDT Jul 12, 2026-6pm MDT Jul 18, 2026
 
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Additional Resources

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