Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

YELLOW MULE (YLWM8)

Lat: 45.1661°NLon: 111.35954°WElev: 9200.0ft.

NA

50°F

10°C

Humidity 58%
Wind Speed W 8 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Wind Chill47°F (8°C)
Last update 17 Aug 11:04 PM MDT
Extended Forecast for

11 Miles SW Big Sky MT

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before midnight.  Mostly cloudy, with a low around 49. Light east southeast wind.

    Low: 49 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers between 11am and noon, then a chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 67. Light and variable wind becoming west northwest 6 to 11 mph in the morning. Winds could gust as high as 25 mph.  Chance of precipitation is 40%.

    High: 67 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly before 8pm.  Partly cloudy, with a low around 48. Northwest wind 5 to 7 mph becoming light and variable  in the evening. Winds could gust as high as 21 mph.

    Low: 48 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 70. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 23 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. West wind 5 to 9 mph becoming calm  in the evening. Winds could gust as high as 21 mph.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 75. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54. West wind 5 to 7 mph becoming light and variable  in the evening.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 77. Light and variable wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers.  Mostly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    Showers

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 49. Light east southeast wind.
Tuesday
A slight chance of showers between 11am and noon, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67. Light and variable wind becoming west northwest 6 to 11 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 40%.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 48. Northwest wind 5 to 7 mph becoming light and variable in the evening. Winds could gust as high as 21 mph.
Wednesday
Sunny, with a high near 70. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 52. West wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 21 mph.
Thursday
Sunny, with a high near 75. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 54. West wind 5 to 7 mph becoming light and variable in the evening.
Friday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77. Light and variable wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Friday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 56.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 72.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 69.
Sunday Night
A chance of showers. Partly cloudy, with a low around 50.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SW Big Sky MT
 45.14°N 111.45°W (Elev. 7664 ft)
12:32 pm MDT Aug 17, 2026
11pm MDT Aug 17, 2026-6pm MDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database