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

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874.0ft.

Clear

55°F

13°C

Humidity 71%
Wind Speed N 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 19 Aug 05:05 AM MDT
Extended Forecast for

3 Miles WNW Helena MT

  • Today

    Today: Sunny, with a high near 86. Light west southwest wind becoming west northwest 5 to 10 mph in the morning.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. West northwest wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. North wind 5 to 7 mph becoming calm  after midnight.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 61. East northeast wind 5 to 7 mph becoming calm  after midnight.

    Low: 61 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 86. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.  Chance of precipitation is 50%.

    High: 86 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • 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
    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after noon.  Sunny, with a high near 82.

    High: 82 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 86. Light west southwest wind becoming west northwest 5 to 10 mph in the morning.
Tonight
Mostly clear, with a low around 55. West northwest wind 5 to 10 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 91. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 59. North wind 5 to 7 mph becoming calm after midnight.
Friday
Sunny, with a high near 90. Calm wind becoming northeast around 6 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 61. East northeast wind 5 to 7 mph becoming calm after midnight.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 86. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 50%.
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. Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Helena MT
 46.6°N 112.08°W (Elev. 4052 ft)
4:16 am MDT Aug 19, 2026
5am MDT Aug 19, 2026-6pm MDT Aug 25, 2026
 
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Additional Resources

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