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

HELENA (HRWM8)

Lat: 46.73167°NLon: 112.01917°WElev: 3800.0ft.

NA

53°F

12°C

Humidity 90%
Wind Speed NW 3 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Last update 27 May 04:53 AM MDT
Extended Forecast for

3 Miles SW Marysville MT

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 70. Northwest wind 6 to 10 mph becoming east in the afternoon.

    High: 70 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight. Partly cloudy, with a low around 50. Northeast wind 5 to 10 mph becoming west in the evening. Chance of precipitation is 40%.

    Low: 50 °F

    Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73. East wind 5 to 11 mph, with gusts as high as 20 mph.

    High: 73 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before midnight. Partly cloudy, with a low around 52. East wind 9 to 11 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 52 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71. West wind 7 to 10 mph becoming north northwest in the afternoon.

    High: 71 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 46. North northeast wind around 15 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%.

    Low: 46 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers, with thunderstorms also possible after noon. High near 49. West northwest wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    High: 49 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before midnight, then rain likely after midnight. Mostly cloudy, with a low around 39. Breezy, with a west wind 15 to 23 mph, with gusts as high as 31 mph.

    Low: 39 °F

    Showers and
    Breezy

  • Sunday

    Sunday: A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 49. Breezy.

    High: 49 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 70. Northwest wind 6 to 10 mph becoming east in the afternoon.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight. Partly cloudy, with a low around 50. Northeast wind 5 to 10 mph becoming west in the evening. Chance of precipitation is 40%.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73. East wind 5 to 11 mph, with gusts as high as 20 mph.
Thursday Night
A 30 percent chance of showers before midnight. Partly cloudy, with a low around 52. East wind 9 to 11 mph becoming west after midnight. Winds could gust as high as 20 mph.
Friday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71. West wind 7 to 10 mph becoming north northwest in the afternoon.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 46. North northeast wind around 15 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%.
Saturday
Showers, with thunderstorms also possible after noon. High near 49. West northwest wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm before midnight, then rain likely after midnight. Mostly cloudy, with a low around 39. Breezy, with a west wind 15 to 23 mph, with gusts as high as 31 mph.
Sunday
A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 49. Breezy.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 38.
Monday
A chance of rain and thunderstorms. Partly sunny, with a high near 53.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 40.
Tuesday
A slight chance of rain and thunderstorms. Mostly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Marysville MT
 46.73°N 112.35°W (Elev. 6768 ft)
Last Update:
4:27 am MDT May 27, 2026
Forecast Valid:
5am MDT May 27, 2026-6pm MDT Jun 2, 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