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

57°F

14°C

Humidity 82%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 27 Aug 08:15 AM MDT
Extended Forecast for

Clancy 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 89. Light and variable wind becoming southwest 5 to 8 mph in the afternoon.  Chance of precipitation is 40%.

    High: 89 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 7pm.  Patchy smoke after midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 51. Southwest wind 5 to 8 mph becoming calm  after midnight.

    Low: 51 °F

    Slight Chance
    T-storms then
    Patchy Smoke

  • Friday

    Friday: Patchy smoke before 9am. Mostly cloudy, with a high near 82. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 82 °F

    Patchy Smoke
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly after midnight.  Mostly cloudy, with a low around 52. South southwest wind around 6 mph becoming calm  after midnight.

    Low: 52 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers and possibly a thunderstorm after noon.  High near 75. Calm wind becoming west southwest 5 to 8 mph in the morning.  Chance of precipitation is 80%.

    High: 75 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm.  Low around 45. Southwest wind 3 to 6 mph.  Chance of precipitation is 80%.

    Low: 45 °F

    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after noon.  Partly sunny, with a high near 69. Light west southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 21 mph.  Chance of precipitation is 50%.

    High: 69 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40. West northwest wind 5 to 9 mph becoming light and variable.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 76.

    High: 76 °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 89. Light and variable wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 40%.
Tonight
A 20 percent chance of showers and thunderstorms before 7pm. Patchy smoke after midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 51. Southwest wind 5 to 8 mph becoming calm after midnight.
Friday
Patchy smoke before 9am. Mostly cloudy, with a high near 82. Calm wind becoming south 5 to 8 mph in the afternoon.
Friday Night
A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 52. South southwest wind around 6 mph becoming calm after midnight.
Saturday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 75. Calm wind becoming west southwest 5 to 8 mph in the morning. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm. Low around 45. Southwest wind 3 to 6 mph. Chance of precipitation is 80%.
Sunday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 69. Light west southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 40. West northwest wind 5 to 9 mph becoming light and variable.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 46.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 79.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 47.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Clancy MT
 46.46°N 111.99°W (Elev. 4400 ft)
7:47 am MDT Aug 27, 2026
8am MDT Aug 27, 2026-6pm MDT Sep 2, 2026
 
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Additional Resources

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