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

86°F

30°C

Humidity 23%
Wind Speed ENE 6 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 04 Jul 06:53 PM MDT
Extended Forecast for

8 Miles SSE Marysville MT

  • Tonight

    Tonight: Mostly clear, with a low around 55. West wind 5 to 7 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 83. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 83 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 54. West northwest wind 3 to 7 mph. Winds could gust as high as 18 mph.

    Low: 54 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74. Northeast wind 7 to 9 mph.

    High: 74 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 55. North northwest wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 70%.

    Low: 55 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 30%.

    High: 80 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56. North northwest wind around 6 mph becoming calm in the evening.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 84 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55.

    Low: 55 °F

    Slight Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 55. West wind 5 to 7 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 83. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 54. West northwest wind 3 to 7 mph. Winds could gust as high as 18 mph.
Monday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74. Northeast wind 7 to 9 mph.
Monday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 55. North northwest wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 70%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 56. North northwest wind around 6 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SSE Marysville MT
 46.65°N 112.24°W (Elev. 4816 ft)
Last Update:
4:07 pm MDT Jul 4, 2026
Forecast Valid:
7pm MDT Jul 4, 2026-6pm MDT Jul 11, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation