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

Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Partly Cloudy

54°F

12°C

Humidity 54%
Wind Speed W 10 MPH
Barometer 29.77 in (1008.13 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 14 Nov 03:05 PM MST
Extended Forecast for

Helena MT

  • This Afternoon

    This Afternoon: A 20 percent chance of rain before 5pm. Partly sunny, with a high near 57. West wind 11 to 14 mph, with gusts as high as 25 mph.

    High: 57 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A 10 percent chance of rain before 7pm. Mostly cloudy, with a low around 41. Southwest wind 9 to 11 mph, with gusts as high as 22 mph.

    Low: 41 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 56. West wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 56 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34. South southwest wind 3 to 6 mph.

    Low: 34 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 53. Light and variable wind.

    High: 53 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 38. Light and variable wind becoming south around 5 mph.

    Low: 38 °F

    Chance Rain

  • Monday

    Monday: A 50 percent chance of rain. Mostly cloudy, with a high near 53. Southwest wind 3 to 5 mph.

    High: 53 °F

    Chance Rain

  • Monday Night

    Monday Night: A chance of rain before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 35. Southwest wind around 6 mph.

    Low: 35 °F

    Chance
    Rain/Snow

  • Tuesday

    Tuesday: A chance of rain and snow. Partly sunny, with a high near 47.

    High: 47 °F

    Chance
    Rain/Snow

Detailed Forecast

This Afternoon
A 20 percent chance of rain before 5pm. Partly sunny, with a high near 57. West wind 11 to 14 mph, with gusts as high as 25 mph.
Tonight
A 10 percent chance of rain before 7pm. Mostly cloudy, with a low around 41. Southwest wind 9 to 11 mph, with gusts as high as 22 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 56. West wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 34. South southwest wind 3 to 6 mph.
Sunday
Partly sunny, with a high near 53. Light and variable wind.
Sunday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 38. Light and variable wind becoming south around 5 mph.
Monday
A 50 percent chance of rain. Mostly cloudy, with a high near 53. Southwest wind 3 to 5 mph.
Monday Night
A chance of rain before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 35. Southwest wind around 6 mph.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 47.
Tuesday Night
A chance of rain and snow, mainly before 11pm. Mostly cloudy, with a low around 33.
Wednesday
A chance of snow. Partly sunny, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
A chance of rain and snow. Partly sunny, with a high near 42.
Thursday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 26.
Friday
Mostly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.58°N 112.01°W (Elev. 4111 ft)
Last Update:
1:44 pm MST Nov 14, 2025
Forecast Valid:
3pm MST Nov 14, 2025-6pm MST Nov 21, 2025
 
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