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.

Partly Cloudy

54°F

12°C

Humidity 30%
Wind Speed NE 9 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 18 May 05:05 PM MDT
Extended Forecast for

Helena MT

  • Tonight

    Tonight: Partly cloudy, with a low around 31. West wind around 6 mph becoming calm after midnight.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly between noon and 5pm. Mostly sunny, with a high near 64. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 64 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers, mainly between 7pm and midnight. Partly cloudy, with a low around 39. Southwest wind 3 to 6 mph.

    Low: 39 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 59. Calm wind becoming northwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

    High: 59 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 9pm, then rain, mainly after 9pm. Low around 38. West northwest wind 5 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

    Low: 38 °F

    Showers

  • Thursday

    Thursday: A 50 percent chance of rain before noon. Partly sunny, with a high near 63. North wind around 6 mph.

    High: 63 °F

    Chance Rain
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 38. North wind 5 to 7 mph becoming calm in the evening.

    Low: 38 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 69. Calm wind becoming north around 6 mph in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 31. West wind around 6 mph becoming calm after midnight.
Tuesday
A 30 percent chance of showers, mainly between noon and 5pm. Mostly sunny, with a high near 64. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers, mainly between 7pm and midnight. Partly cloudy, with a low around 39. Southwest wind 3 to 6 mph.
Wednesday
A chance of rain between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 59. Calm wind becoming northwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Wednesday Night
Showers and possibly a thunderstorm before 9pm, then rain, mainly after 9pm. Low around 38. West northwest wind 5 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Thursday
A 50 percent chance of rain before noon. Partly sunny, with a high near 63. North wind around 6 mph.
Thursday Night
Partly cloudy, with a low around 38. North wind 5 to 7 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 69. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 47.
Memorial Day
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.58°N 112.01°W (Elev. 4111 ft)
Last Update:
5:19 pm MDT May 18, 2026
Forecast Valid:
5pm MDT May 18, 2026-6pm MDT May 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation