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. Southeast wind 3 to 5 mph.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy smoke after 5pm. Sunny, with a high near 85. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 85 °F

    Sunny then
    Patchy Smoke

  • Wednesday Night

    Wednesday Night: Patchy smoke between midnight and 4am. Mostly clear, with a low around 56. West wind 5 to 7 mph becoming calm  in the evening. Winds could gust as high as 20 mph.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Smoke

  • Thursday

    Thursday: Sunny, with a high near 92. Calm wind becoming west around 5 mph in the afternoon.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. North northeast wind 5 to 7 mph becoming calm  after midnight.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 90. Light and variable wind.

    High: 90 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after midnight.  Mostly cloudy, with a low around 60. North northeast wind around 5 mph becoming calm  after midnight.

    Low: 60 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms after noon.  Partly sunny, with a high near 86. South southeast wind 3 to 8 mph.

    High: 86 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    Showers then
    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 54. Southeast wind 3 to 5 mph.
Wednesday
Patchy smoke after 5pm. Sunny, with a high near 85. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Patchy smoke between midnight and 4am. Mostly clear, with a low around 56. West wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 92. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 56. North northeast wind 5 to 7 mph becoming calm after midnight.
Friday
Mostly sunny, with a high near 90. Light and variable wind.
Friday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 60. North northeast wind around 5 mph becoming calm after midnight.
Saturday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 86. South southeast wind 3 to 8 mph.
Saturday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 56.
Sunday
Sunny, with a high near 83.
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
Sunny, with a high near 86.
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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 pm MDT Aug 18, 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