National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Strong to Severe Thunderstorms Continue Tonight in the East; Early Heat Wave in the West

Scattered strong to severe storms with damaging winds and potentially a tornado or two are expected tonight from the coastal Carolinas into the Mid-Atlantic states. An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Clear

45°F

7°C

Humidity 65%
Wind Speed N 0 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 17 Mar 12:05 AM MDT
Extended Forecast for

Helena MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 41. Southwest wind around 14 mph, with gusts as high as 29 mph.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 56. West wind 10 to 15 mph, with gusts as high as 34 mph.

    High: 56 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 44. South wind 8 to 11 mph, with gusts as high as 26 mph.

    Low: 44 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 64. South wind 13 to 21 mph becoming west in the afternoon. Winds could gust as high as 44 mph.

    High: 64 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45. South southwest wind 9 to 14 mph, with gusts as high as 30 mph.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 68. South southwest wind 9 to 18 mph, with gusts as high as 38 mph.

    High: 68 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. Southwest wind 10 to 14 mph, with gusts as high as 37 mph.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 71. South southwest wind 10 to 18 mph, with gusts as high as 36 mph.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 41. Southwest wind around 14 mph, with gusts as high as 29 mph.
Tuesday
Partly sunny, with a high near 56. West wind 10 to 15 mph, with gusts as high as 34 mph.
Tuesday Night
Mostly cloudy, with a low around 44. South wind 8 to 11 mph, with gusts as high as 26 mph.
Wednesday
Partly sunny, with a high near 64. South wind 13 to 21 mph becoming west in the afternoon. Winds could gust as high as 44 mph.
Wednesday Night
Partly cloudy, with a low around 45. South southwest wind 9 to 14 mph, with gusts as high as 30 mph.
Thursday
Mostly sunny, with a high near 68. South southwest wind 9 to 18 mph, with gusts as high as 38 mph.
Thursday Night
Partly cloudy, with a low around 48. Southwest wind 10 to 14 mph, with gusts as high as 37 mph.
Friday
Mostly sunny, with a high near 71. South southwest wind 10 to 18 mph, with gusts as high as 36 mph.
Friday Night
Partly cloudy, with a low around 46.
Saturday
A chance of rain before 3pm, then a chance of rain and snow. Partly sunny, with a high near 61.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.58°N 112.04°W (Elev. 4413 ft)
Last Update:
12:01 am MDT Mar 17, 2026
Forecast Valid:
12am MDT Mar 17, 2026-6pm MDT Mar 23, 2026
 
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Additional Resources

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Chance of Precipitation