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.

Mostly Cloudy

46°F

8°C

Humidity 52%
Wind Speed SW 4 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 20 Mar 06:00 AM MDT
Extended Forecast for

Helena MT

  • Today

    Today: Sunny, with a high near 75. Breezy, with a south southwest wind 8 to 13 mph becoming west 21 to 26 mph in the afternoon. Winds could gust as high as 50 mph.

    High: 75 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 45. West southwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 46 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 64. Breezy, with a west wind 8 to 13 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 49 mph.

    High: 64 °F

    Mostly Sunny
    then Chance
    Rain and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. Blustery, with a west northwest wind 19 to 24 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 49 mph.

    Low: 29 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 53. West southwest wind 5 to 10 mph, with gusts as high as 22 mph.

    High: 53 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32. West wind 6 to 11 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 57. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 57 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36. West northwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain after noon.  Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 75. Breezy, with a south southwest wind 8 to 13 mph becoming west 21 to 26 mph in the afternoon. Winds could gust as high as 50 mph.
Tonight
Partly cloudy, with a low around 45. West southwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 46 mph.
Saturday
A 40 percent chance of rain, mainly between noon and 4pm. Partly sunny, with a high near 64. Breezy, with a west wind 8 to 13 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 49 mph.
Saturday Night
Mostly clear, with a low around 29. Blustery, with a west northwest wind 19 to 24 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 49 mph.
Sunday
Sunny, with a high near 53. West southwest wind 5 to 10 mph, with gusts as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 32. West wind 6 to 11 mph becoming light southwest after midnight. Winds could gust as high as 24 mph.
Monday
Mostly cloudy, with a high near 57. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 36. West northwest wind 5 to 8 mph becoming calm in the evening.
Tuesday
A slight chance of rain after noon. Mostly cloudy, with a high near 63.
Tuesday Night
A slight chance of rain after midnight. 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 46.
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ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.58°N 112.04°W (Elev. 4413 ft)
4:01 am MDT Mar 20, 2026
6am 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