National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Helena Regional Airport (KHLN)

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

Clear

81°F

27°C

Humidity 10%
Wind Speed S 20 MPH
Barometer 29.69 in (1005.42 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 21 Apr 03:25 PM MDT
Extended Forecast for

Helena MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. South wind 6 to 13 mph, with gusts as high as 24 mph.

    Low: 49 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain likely and possibly a thunderstorm before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then rain after 5pm. High near 65. Breezy, with a south wind 6 to 11 mph becoming south 17 to 22 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 80%.

    High: 65 °F

    Slight Chance
    Rain then
    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain. Low around 34. West wind 10 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 34 °F

    Rain

  • Thursday

    Thursday: Rain and snow, becoming all snow after 9am. High near 42. West northwest wind 9 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 42 °F

    Rain/Snow
    then Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 25. North northwest wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Snow Likely

  • Friday

    Friday: Snow likely. Mostly cloudy, with a high near 39. North wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Snow Likely

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 21. North wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 18 mph.

    Low: 21 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of snow. Partly sunny, with a high near 43. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 43 °F

    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 49. South wind 6 to 13 mph, with gusts as high as 24 mph.
Wednesday
Rain likely and possibly a thunderstorm before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then rain after 5pm. High near 65. Breezy, with a south wind 6 to 11 mph becoming south 17 to 22 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 80%.
Wednesday Night
Rain. Low around 34. West wind 10 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain and snow, becoming all snow after 9am. High near 42. West northwest wind 9 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 25. North northwest wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Snow likely. Mostly cloudy, with a high near 39. North wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 21. North wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Saturday
A slight chance of snow. Partly sunny, with a high near 43. Calm wind becoming north northeast around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
A slight chance of snow. Partly sunny, with a high near 46.
Sunday Night
Mostly cloudy, with a low around 25.
Monday
A slight chance of rain. Partly sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.59°N 111.98°W (Elev. 3996 ft)
Last Update:
12:37 pm MDT Apr 21, 2026
Forecast Valid:
3pm MDT Apr 21, 2026-6pm MDT Apr 28, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation