Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Clear

55°F

13°C

Humidity 82%
Wind Speed N 0 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 27 Aug 07:15 AM MDT
Extended Forecast for

3 Miles SSE Helena MT

  • Today

    Today: A chance of showers and thunderstorms, mainly between 1pm and 3pm, then a slight chance of thunderstorms after 3pm.  Partly sunny, with a high near 86. Calm wind becoming south southeast 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 40%.

    High: 86 °F

    Partly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Patchy smoke after 11pm. Cloudy during the early evening, then gradual clearing, with a low around 58. Southwest wind 5 to 9 mph.

    Low: 58 °F

    Chance
    T-storms then
    Patchy Smoke

  • Friday

    Friday: Patchy smoke before 10am. Mostly cloudy, with a high near 80. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 80 °F

    Patchy Smoke
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of showers after midnight.  Mostly cloudy, with a low around 58. South southwest wind 3 to 8 mph. Winds could gust as high as 18 mph.

    Low: 58 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers and possibly a thunderstorm after noon.  High near 73. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.  Chance of precipitation is 80%.

    High: 73 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm.  Low around 53. West wind around 7 mph.  Chance of precipitation is 80%.

    Low: 53 °F

    Showers

  • Sunday

    Sunday: A 50 percent chance of showers.  Partly sunny, with a high near 67. West southwest wind 7 to 15 mph, with gusts as high as 26 mph.

    High: 67 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 46. Southwest wind 6 to 13 mph, with gusts as high as 24 mph.

    Low: 46 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly between 1pm and 3pm, then a slight chance of thunderstorms after 3pm. Partly sunny, with a high near 86. Calm wind becoming south southeast 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Patchy smoke after 11pm. Cloudy during the early evening, then gradual clearing, with a low around 58. Southwest wind 5 to 9 mph.
Friday
Patchy smoke before 10am. Mostly cloudy, with a high near 80. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 58. South southwest wind 3 to 8 mph. Winds could gust as high as 18 mph.
Saturday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 73. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm. Low around 53. West wind around 7 mph. Chance of precipitation is 80%.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 67. West southwest wind 7 to 15 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 46. Southwest wind 6 to 13 mph, with gusts as high as 24 mph.
Monday
Sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 52.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 76.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Helena MT
 46.56°N 112.01°W (Elev. 5200 ft)
4:21 am MDT Aug 27, 2026
7am MDT Aug 27, 2026-6pm MDT Sep 2, 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