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 52%
Wind Speed SW 5 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 17 Mar 04:05 AM MDT
Extended Forecast for

Helena MT

  • Today

    Today: Partly sunny, with a high near 58. South wind 9 to 15 mph becoming west in the afternoon. Winds could gust as high as 30 mph.

    High: 58 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 41. West wind 8 to 10 mph becoming south southeast after midnight. Winds could gust as high as 22 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 66. South southeast wind 10 to 15 mph becoming west 16 to 21 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 66 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. South southwest wind 8 to 13 mph, with gusts as high as 25 mph.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 71. South southwest wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 71 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45. South southwest wind 9 to 14 mph, with gusts as high as 32 mph.

    Low: 45 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 74. South southwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44. Southwest wind 7 to 16 mph, with gusts as high as 31 mph.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of rain, mainly before noon. Partly sunny, with a high near 63.

    High: 63 °F

    Chance Rain

Detailed Forecast

Today
Partly sunny, with a high near 58. South wind 9 to 15 mph becoming west in the afternoon. Winds could gust as high as 30 mph.
Tonight
Mostly cloudy, with a low around 41. West wind 8 to 10 mph becoming south southeast after midnight. Winds could gust as high as 22 mph.
Wednesday
Partly sunny, with a high near 66. South southeast wind 10 to 15 mph becoming west 16 to 21 mph in the afternoon. Winds could gust as high as 38 mph.
Wednesday Night
Mostly cloudy, with a low around 41. South southwest wind 8 to 13 mph, with gusts as high as 25 mph.
Thursday
Partly sunny, with a high near 71. South southwest wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 34 mph.
Thursday Night
Partly cloudy, with a low around 45. South southwest wind 9 to 14 mph, with gusts as high as 32 mph.
Friday
Mostly sunny, with a high near 74. South southwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 33 mph.
Friday Night
Partly cloudy, with a low around 44. Southwest wind 7 to 16 mph, with gusts as high as 31 mph.
Saturday
A chance of rain, mainly before noon. Partly sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Mostly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 58.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.61°N 111.99°W (Elev. 3878 ft)
Last Update:
1:17 am MDT Mar 17, 2026
Forecast Valid:
4am MDT Mar 17, 2026-6pm MDT Mar 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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