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.

Overcast

46°F

8°C

Humidity 61%
Wind Speed W 11 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 16 Mar 10:35 PM MDT
Extended Forecast for

Helena MT

  • Tonight

    Tonight: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 40. South southwest wind 10 to 13 mph, with gusts as high as 24 mph.

    Low: 40 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 58. South wind 8 to 14 mph becoming west in the afternoon. Winds could gust as high as 31 mph.

    High: 58 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 43. West wind 6 to 10 mph becoming south after midnight. Winds could gust as high as 23 mph.

    Low: 43 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 65. South wind 9 to 14 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 41 mph.

    High: 65 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 44. South southwest wind 6 to 11 mph, with gusts as high as 28 mph.

    Low: 44 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 69. South southwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 36 mph.

    High: 69 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. South southwest wind 8 to 11 mph, with gusts as high as 34 mph.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 73. South southwest wind 8 to 18 mph, with gusts as high as 34 mph.

    High: 73 °F

    Mostly Sunny

  • Friday Night

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

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 40. South southwest wind 10 to 13 mph, with gusts as high as 24 mph.
Tuesday
Partly sunny, with a high near 58. South wind 8 to 14 mph becoming west in the afternoon. Winds could gust as high as 31 mph.
Tuesday Night
Mostly cloudy, with a low around 43. West wind 6 to 10 mph becoming south after midnight. Winds could gust as high as 23 mph.
Wednesday
Partly sunny, with a high near 65. South wind 9 to 14 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 41 mph.
Wednesday Night
Mostly cloudy, with a low around 44. South southwest wind 6 to 11 mph, with gusts as high as 28 mph.
Thursday
Mostly sunny, with a high near 69. South southwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 36 mph.
Thursday Night
Partly cloudy, with a low around 48. South southwest wind 8 to 11 mph, with gusts as high as 34 mph.
Friday
Mostly sunny, with a high near 73. South southwest wind 8 to 18 mph, with gusts as high as 34 mph.
Friday Night
Partly cloudy, with a low around 46.
Saturday
A chance of rain. Partly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.59°N 111.98°W (Elev. 3996 ft)
Last Update:
10:29 pm MDT Mar 16, 2026
Forecast Valid:
10pm MDT Mar 16, 2026-6pm MDT Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation