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

21°C

70°F

Humidity 40%
Wind Speed N 5 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 7°C (45°F)
Visibility 16 km
Last update 20 Jul 10:05 AM MDT
Extended Forecast for

Helena MT

  • Today

    Today: Patchy smoke between 11am and 5pm. Mostly sunny, with a high near 30. North wind 5 to 14 km/h.

    High: 30 °C

    Patchy Smoke

  • Tonight

    Tonight: Patchy smoke between 8pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 16. North wind 8 to 16 km/h becoming west after midnight.

    Low: 16 °C

    Patchy Smoke
    then Partly
    Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms between 4pm and 5pm. Mostly sunny, with a high near 31. West northwest wind 5 to 10 km/h becoming east northeast in the afternoon. Chance of precipitation is 20%.

    High: 31 °C

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 17. North wind 8 to 13 km/h becoming light and variable after midnight.

    Low: 17 °C

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 32. Calm wind becoming north 5 to 8 km/h in the afternoon.

    High: 32 °C

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 17. North northeast wind 5 to 8 km/h becoming calm after midnight. Chance of precipitation is 40%.

    Low: 17 °C

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 33. Calm wind becoming east northeast 5 to 8 km/h in the afternoon.

    High: 33 °C

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 17. South wind around 8 km/h.

    Low: 17 °C

    Mostly Clear

  • Friday

    Friday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 35.

    High: 35 °C

    Sunny then
    Chance
    T-storms

Detailed Forecast

Today
Patchy smoke between 11am and 5pm. Mostly sunny, with a high near 30. North wind 5 to 14 km/h.
Tonight
Patchy smoke between 8pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 16. North wind 8 to 16 km/h becoming west after midnight.
Tuesday
A slight chance of showers and thunderstorms between 4pm and 5pm. Mostly sunny, with a high near 31. West northwest wind 5 to 10 km/h becoming east northeast in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 17. North wind 8 to 13 km/h becoming light and variable after midnight.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 32. Calm wind becoming north 5 to 8 km/h in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 17. North northeast wind 5 to 8 km/h becoming calm after midnight. Chance of precipitation is 40%.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 33. Calm wind becoming east northeast 5 to 8 km/h in the afternoon.
Thursday Night
Mostly clear, with a low around 17. South wind around 8 km/h.
Friday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 35.
Friday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 17.
Saturday
Sunny, with a high near 34.
Saturday Night
Mostly clear, with a low around 16.
Sunday
Sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.61°N 112.02°W (Elev. 3940 m)
Last Update:
9:46 am MDT Jul 20, 2026
Forecast Valid:
10am MDT Jul 20, 2026-6pm MDT Jul 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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