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

Helmville MT-200 MP 53.3 (MTHLM)

Lat: 46.96826°NLon: 112.97487°WElev: 4199.0ft.

NA

86°F

30°C

Humidity 21%
Wind Speed WNW 7 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Heat Index83°F (28°C)
Last update 27 Aug 03:30 PM MDT
Extended Forecast for

Helmville MT

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 86. West southwest wind around 6 mph, with gusts as high as 18 mph.

    High: 86 °F

    Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 7pm.  Patchy smoke between 11pm and 3am. Mostly cloudy, then gradually becoming mostly clear, with a low around 44. North wind around 6 mph becoming calm  in the evening.

    Low: 44 °F

    Slight Chance
    T-storms then
    Patchy Smoke

  • Friday

    Friday: Increasing clouds, with a high near 81. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 81 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A slight chance of rain before 4am, then a slight chance of rain after 5am.  Mostly cloudy, with a low around 45. Light and variable wind.  Chance of precipitation is 20%.

    Low: 45 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A chance of rain, then showers and possibly a thunderstorm after noon.  High near 74. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Chance Rain
    then Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before midnight, then rain after midnight.  Low around 38. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 38 °F

    Showers

  • Sunday

    Sunday: A chance of rain before noon, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 65. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86. West southwest wind around 6 mph, with gusts as high as 18 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 7pm. Patchy smoke between 11pm and 3am. Mostly cloudy, then gradually becoming mostly clear, with a low around 44. North wind around 6 mph becoming calm in the evening.
Friday
Increasing clouds, with a high near 81. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Friday Night
A slight chance of rain before 4am, then a slight chance of rain after 5am. Mostly cloudy, with a low around 45. Light and variable wind. Chance of precipitation is 20%.
Saturday
A chance of rain, then showers and possibly a thunderstorm after noon. High near 74. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm before midnight, then rain after midnight. Low around 38. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 65. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 80.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 39.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 74.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 38.
Thursday
A chance of rain. Partly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Helmville MT
 46.86°N 112.97°W (Elev. 4377 ft)
2:01 pm MDT Aug 27, 2026
3pm MDT Aug 27, 2026-6pm MDT Sep 3, 2026
 
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Additional Resources

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Hourly Weather Forecast

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