Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Clear

75°F

24°C

Humidity 19%
Wind Speed W 21 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 20 Mar 03:30 PM MDT
Extended Forecast for

Helena MT

  • Tonight

    Tonight: Partly cloudy, with a low around 45. West wind 12 to 17 mph becoming light west southwest  after midnight. Winds could gust as high as 37 mph.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of rain before 2pm, then a slight chance of rain after 3pm.  Mostly sunny, with a high near 61. Breezy, with a light west southwest wind becoming west northwest 18 to 23 mph in the morning. Winds could gust as high as 41 mph.  Chance of precipitation is 20%.

    High: 61 °F

    Mostly Sunny
    then Slight
    Chance Rain
    and Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32. West northwest wind 8 to 13 mph becoming light west  after midnight. Winds could gust as high as 29 mph.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 54. Light west southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31. West northwest wind 5 to 10 mph becoming light and variable  in the evening. Winds could gust as high as 23 mph.

    Low: 31 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 58. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 58 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 35. West northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 35 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 66. Light south southwest wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 66 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 45. West wind 12 to 17 mph becoming light west southwest after midnight. Winds could gust as high as 37 mph.
Saturday
A slight chance of rain before 2pm, then a slight chance of rain after 3pm. Mostly sunny, with a high near 61. Breezy, with a light west southwest wind becoming west northwest 18 to 23 mph in the morning. Winds could gust as high as 41 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 32. West northwest wind 8 to 13 mph becoming light west after midnight. Winds could gust as high as 29 mph.
Sunday
Sunny, with a high near 54. Light west southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 31. West northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 23 mph.
Monday
Mostly cloudy, with a high near 58. Calm wind becoming west northwest around 6 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 35. West northwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Mostly cloudy, with a high near 66. Light south southwest wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 44.
Wednesday
Partly sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 29.
Thursday
Mostly sunny, with a high near 47.
Thursday Night
Mostly clear, with a low around 25.
Friday
Sunny, with a high near 56.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.59°N 111.98°W (Elev. 3996 ft)
12:56 pm MDT Mar 20, 2026
3pm MDT Mar 20, 2026-6pm MDT Mar 27, 2026
 
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