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 (HRWM8)

Lat: 46.73167°NLon: 112.01917°WElev: 3800.0ft.

NA

60°F

16°C

Humidity 61%
Wind Speed SSE 0 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 18 Aug 11:53 PM MDT
Extended Forecast for

17 Miles NNE East Helena MT

  • Overnight

    Overnight: Mostly clear, with a low around 54. South southwest wind 3 to 5 mph.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. Light and variable wind becoming west 5 to 9 mph in the morning.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. West northwest wind 5 to 9 mph becoming light and variable  after midnight.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 92. Light north wind.

    High: 92 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 58. Northeast wind around 5 mph becoming calm  after midnight.

    Low: 58 °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 87. Calm wind becoming west southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 87 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 54. South southwest wind 3 to 5 mph.
Wednesday
Sunny, with a high near 86. Light and variable wind becoming west 5 to 9 mph in the morning.
Wednesday Night
Mostly clear, with a low around 56. West northwest wind 5 to 9 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 91. Calm wind becoming south southwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 58. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 92. Light north wind.
Friday Night
Mostly cloudy, with a low around 58. Northeast wind around 5 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 87. Calm wind becoming west southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57.
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 85.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles NNE East Helena MT
 46.82°N 111.81°W (Elev. 4400 ft)
12:31 am MDT Aug 19, 2026
12am 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