Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Periods of critical fire weather will persist from the central Rockies to the central Plains through the weekend as gusty winds and low relative humidity continue. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Clear

57°F

14°C

Humidity 32%
Wind Speed WSW 6 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 20 Mar 02:53 AM MDT
Extended Forecast for

Helena MT

High Wind Warning March 20, 06:00am until March 21, 12:00pm
Click here for hazard details and duration
High Wind Warning
  • Overnight

    Overnight: Partly cloudy, with a low around 47. South southwest wind around 10 mph.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 73. Breezy, with a south southwest wind 9 to 14 mph becoming west 21 to 26 mph in the afternoon. Winds could gust as high as 50 mph.

    High: 73 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45. West southwest wind 16 to 21 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 45 mph.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of rain, mainly between noon and 4pm.  Partly sunny, with a high near 62. Breezy, with a west wind 8 to 13 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 48 mph.

    High: 62 °F

    Mostly Sunny
    then Chance
    Rain and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. Breezy, with a west southwest wind 19 to 24 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 48 mph.

    Low: 29 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 52. West southwest wind 6 to 11 mph, with gusts as high as 23 mph.

    High: 52 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32. West wind 8 to 13 mph becoming light southwest  after midnight. Winds could gust as high as 24 mph.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 56. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 56 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 47. South southwest wind around 10 mph.
Friday
Sunny, with a high near 73. Breezy, with a south southwest wind 9 to 14 mph becoming west 21 to 26 mph in the afternoon. Winds could gust as high as 50 mph.
Friday Night
Partly cloudy, with a low around 45. West southwest wind 16 to 21 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 45 mph.
Saturday
A 40 percent chance of rain, mainly between noon and 4pm. Partly sunny, with a high near 62. Breezy, with a west wind 8 to 13 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 48 mph.
Saturday Night
Mostly clear, with a low around 29. Breezy, with a west southwest wind 19 to 24 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 48 mph.
Sunday
Sunny, with a high near 52. West southwest wind 6 to 11 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 32. West wind 8 to 13 mph becoming light southwest after midnight. Winds could gust as high as 24 mph.
Monday
Mostly cloudy, with a high near 56. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
A slight chance of rain after noon. Mostly cloudy, with a high near 62.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 46.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 60.
Wednesday Night
A slight chance of rain and snow. Partly cloudy, with a low around 30.
Thursday
A slight chance of snow. Mostly sunny, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.58°N 112.07°W (Elev. 4764 ft)
12:32 am MDT Mar 20, 2026
3am MDT Mar 20, 2026-6pm MDT Mar 26, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database