Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Boulder Hill I-15 MP 170.9 (MTBOU)

Lat: 46.3233°NLon: 112.06891°WElev: 5593.0ft.

NA

74°F

23°C

Humidity 18%
Wind Speed SSW 4 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 19 Aug 12:15 PM MDT
Extended Forecast for

7 Miles ENE Boulder MT

  • This Afternoon

    This Afternoon: Sunny, with a high near 75. West wind 6 to 8 mph.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 54. North northwest wind 3 to 8 mph.

    Low: 54 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 80. Light and variable wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59. North wind 3 to 5 mph.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 80. Light and variable wind becoming east northeast around 6 mph in the morning.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 60. East northeast wind 5 to 7 mph becoming calm  in the evening.

    Low: 60 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 76. South wind 3 to 8 mph. Winds could gust as high as 18 mph.

    High: 76 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 57. Southwest wind around 7 mph.

    Low: 57 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 75. West wind 6 to 8 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 54. North northwest wind 3 to 8 mph.
Thursday
Sunny, with a high near 80. Light and variable wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 59. North wind 3 to 5 mph.
Friday
Sunny, with a high near 80. Light and variable wind becoming east northeast around 6 mph in the morning.
Friday Night
Mostly cloudy, with a low around 60. East northeast wind 5 to 7 mph becoming calm in the evening.
Saturday
A 40 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 76. South wind 3 to 8 mph. Winds could gust as high as 18 mph.
Saturday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 57. Southwest wind around 7 mph.
Sunday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74.
Sunday Night
Mostly clear, with a low around 51.
Monday
Sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ENE Boulder MT
 46.27°N 111.99°W (Elev. 6457 ft)
12:31 pm MDT Aug 19, 2026
12pm MDT Aug 19, 2026-6pm MDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database