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. Many locations are likely to set records for the highest-ever March temperature. Periods of critical fire weather will persist from the central Rockies to the central Plains through Saturday 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

72°F

22°C

Humidity 18%
Wind Speed W 24 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 19 Mar 03:05 PM 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
  • Tonight

    Tonight: Partly cloudy, with a low around 47. South southwest wind 10 to 17 mph, with gusts as high as 40 mph.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 70. Breezy, with a south southwest wind 9 to 14 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 50 mph.

    High: 70 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46. Southwest wind 11 to 21 mph, with gusts as high as 45 mph.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of rain.  Partly sunny, with a high near 59. West southwest wind 9 to 17 mph, with gusts as high as 33 mph.

    High: 59 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. West northwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 33 mph.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 52. West southwest wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 52 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33. West wind 6 to 11 mph becoming light southwest  after midnight. Winds could gust as high as 23 mph.

    Low: 33 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 55. Calm wind becoming west northwest 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 55 °F

    Partly Sunny

  • Monday Night

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

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 47. South southwest wind 10 to 17 mph, with gusts as high as 40 mph.
Friday
Sunny, with a high near 70. Breezy, with a south southwest wind 9 to 14 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 50 mph.
Friday Night
Partly cloudy, with a low around 46. Southwest wind 11 to 21 mph, with gusts as high as 45 mph.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 59. West southwest wind 9 to 17 mph, with gusts as high as 33 mph.
Saturday Night
Mostly clear, with a low around 31. West northwest wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 33 mph.
Sunday
Sunny, with a high near 52. West southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 33. West wind 6 to 11 mph becoming light southwest after midnight. Winds could gust as high as 23 mph.
Monday
Partly sunny, with a high near 55. Calm wind becoming west northwest 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
Mostly cloudy, with a high near 60.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 38.
Wednesday
A chance of rain. Partly sunny, with a high near 54. Breezy.
Wednesday Night
A slight chance of rain and snow. Partly cloudy, with a low around 28. Breezy.
Thursday
A slight chance of snow. Sunny, with a high near 46.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.58°N 112.07°W (Elev. 4764 ft)
2:27 pm MDT Mar 19, 2026
3pm MDT Mar 19, 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