Severe Thunderstorms and Heavy Rain in the Mid-Atlantic; Heat Persists Across the South

Scattered severe thunderstorms and excessive rainfall are possible into the night in the Mid Atlantic, and heavy rain will shift to Virginia and the Carolinas on Friday. Severe thunderstorms are also possible in the Central Plains into the Upper MS Valley and the Deep South tonight. Dangerous heat persists across the Southern Plains and Lower MS Valley and heat will expand into the Southwest. Read More >

Current conditions at

HELENA VALLEY (HVMT)

Lat: 46.67917°NLon: 111.98333°WElev: 3673.0ft.

NA

49°F

9°C

Humidity 80%
Wind Speed NW 2 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 21 Aug 04:00 AM MDT
Extended Forecast for

12 Miles NNE East Helena MT

  • Today

    Today: Patchy smoke between noon and 3pm. Sunny, with a high near 91. Calm wind becoming north around 6 mph in the afternoon.

    High: 91 °F

    Patchy Smoke

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 2am.  Increasing clouds, with a low around 56. North wind 5 to 7 mph becoming east in the evening.

    Low: 56 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms after 5pm.  Cloudy, then gradually becoming mostly sunny, with a high near 88. Southeast wind 3 to 6 mph.  Chance of precipitation is 30%.

    High: 88 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 55. South wind around 6 mph.

    Low: 55 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm.  Mostly sunny, with a high near 85. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 24 mph.  Chance of precipitation is 20%.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. West wind 5 to 10 mph becoming light west southwest  after midnight. Winds could gust as high as 24 mph.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 85. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 51. Northwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 51 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Patchy smoke between noon and 3pm. Sunny, with a high near 91. Calm wind becoming north around 6 mph in the afternoon.
Tonight
A 20 percent chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 56. North wind 5 to 7 mph becoming east in the evening.
Saturday
A slight chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 88. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.
Saturday Night
A 50 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 55. South wind around 6 mph.
Sunday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 85. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 52. West wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 24 mph.
Monday
Sunny, with a high near 85. Calm wind becoming west northwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 51. Northwest wind 5 to 7 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
Sunny, with a high near 84.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 52.
Thursday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNE East Helena MT
 46.73°N 111.79°W (Elev. 4442 ft)
4:31 am MDT Aug 21, 2026
4am MDT Aug 21, 2026-6pm MDT Aug 27, 2026
 
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Additional Resources

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