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

86°F

30°C

Humidity 16%
Wind Speed W 12 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 19 Aug 02:35 PM MDT
Extended Forecast for

3 Miles W Helena MT

  • This Afternoon

    This Afternoon: Sunny, with a high near 88. West wind around 10 mph, with gusts as high as 18 mph.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West northwest wind 5 to 9 mph becoming light southwest  after midnight.

    Low: 57 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 94. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61. North wind around 6 mph becoming calm  in the evening.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 94. Calm wind becoming northeast 5 to 7 mph in the afternoon.

    High: 94 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 62. Northeast wind 5 to 7 mph becoming calm  after midnight.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 88. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 59. Southwest wind around 7 mph.

    Low: 59 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 85.

    High: 85 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 88. West wind around 10 mph, with gusts as high as 18 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West northwest wind 5 to 9 mph becoming light southwest after midnight.
Thursday
Sunny, with a high near 94. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 61. North wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 94. Calm wind becoming northeast 5 to 7 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 62. Northeast wind 5 to 7 mph becoming calm after midnight.
Saturday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 88. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Saturday Night
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 59. Southwest wind around 7 mph.
Sunday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Helena MT
 46.6°N 112.11°W (Elev. 4039 ft)
12:31 pm MDT Aug 19, 2026
2pm MDT Aug 19, 2026-6pm MDT Aug 25, 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