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

39°F

4°C

Humidity 60%
Wind Speed N 0 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 19 Mar 06:05 AM MDT
Extended Forecast for

Helena MT

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

    Today: Mostly sunny, with a high near 65. South southwest wind 11 to 20 mph, with gusts as high as 33 mph.

    High: 65 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 47. South wind 9 to 14 mph, with gusts as high as 30 mph.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 70. Breezy, with a south southwest wind 9 to 14 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 44 mph.

    High: 70 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46. Southwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 43 mph.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of rain.  Partly sunny, with a high near 57. West southwest wind 9 to 17 mph, with gusts as high as 33 mph.

    High: 57 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. West wind 12 to 17 mph becoming light west southwest  after midnight. Winds could gust as high as 33 mph.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 52. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 52 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33. West wind 5 to 10 mph becoming light southwest  after midnight. Winds could gust as high as 21 mph.

    Low: 33 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 65. South southwest wind 11 to 20 mph, with gusts as high as 33 mph.
Tonight
Partly cloudy, with a low around 47. South wind 9 to 14 mph, with gusts as high as 30 mph.
Friday
Mostly sunny, with a high near 70. Breezy, with a south southwest wind 9 to 14 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 44 mph.
Friday Night
Partly cloudy, with a low around 46. Southwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 43 mph.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 57. West southwest wind 9 to 17 mph, with gusts as high as 33 mph.
Saturday Night
Mostly clear, with a low around 31. West wind 12 to 17 mph becoming light west southwest after midnight. Winds could gust as high as 33 mph.
Sunday
Sunny, with a high near 52. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 33. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 21 mph.
Monday
Mostly cloudy, with a high near 55.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
A slight chance of rain and snow. Mostly cloudy, with a high near 64.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 42.
Wednesday
A chance of rain. Partly sunny, with a high near 55. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.58°N 112.07°W (Elev. 4764 ft)
4:47 am MDT Mar 19, 2026
6am MDT Mar 19, 2026-6pm MDT Mar 25, 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