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.

Overcast

50°F

10°C

Humidity 57%
Wind Speed S 5 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 15 Nov 10:35 AM MST
Extended Forecast for

Helena MT

  • Today

    Today: Mostly sunny, with a high near 58. West wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 58 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 34. Southwest wind around 6 mph becoming calm after midnight.

    Low: 34 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 54. Light and variable wind.

    High: 54 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 37. South wind around 6 mph.

    Low: 37 °F

    Slight Chance
    Rain

  • Monday

    Monday: A 40 percent chance of rain. Mostly cloudy, with a high near 53. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 53 °F

    Chance Rain

  • Monday Night

    Monday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 35. West southwest wind around 6 mph.

    Low: 35 °F

    Chance Rain

  • Tuesday

    Tuesday: A chance of rain and snow before 9am, then a chance of rain. Partly sunny, with a high near 50. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 50 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A chance of rain before 2am, then a chance of rain and snow between 2am and 4am, then a chance of snow after 4am. Mostly cloudy, with a low around 30. West southwest wind 3 to 5 mph.

    Low: 30 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: A chance of snow, mixing with rain after 10am, then gradually ending. Partly sunny, with a high near 45.

    High: 45 °F

    Chance
    Rain/Snow
    then Mostly
    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 58. West wind 7 to 10 mph, with gusts as high as 21 mph.
Tonight
Partly cloudy, with a low around 34. Southwest wind around 6 mph becoming calm after midnight.
Sunday
Mostly cloudy, with a high near 54. Light and variable wind.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 37. South wind around 6 mph.
Monday
A 40 percent chance of rain. Mostly cloudy, with a high near 53. Calm wind becoming west southwest around 6 mph in the afternoon.
Monday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 35. West southwest wind around 6 mph.
Tuesday
A chance of rain and snow before 9am, then a chance of rain. Partly sunny, with a high near 50. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tuesday Night
A chance of rain before 2am, then a chance of rain and snow between 2am and 4am, then a chance of snow after 4am. Mostly cloudy, with a low around 30. West southwest wind 3 to 5 mph.
Wednesday
A chance of snow, mixing with rain after 10am, then gradually ending. Partly sunny, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 45.
Thursday Night
Mostly cloudy, with a low around 26.
Friday
Mostly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Helena MT
 46.61°N 111.99°W (Elev. 3878 ft)
Last Update:
8:49 am MST Nov 15, 2025
Forecast Valid:
10am MST Nov 15, 2025-6pm MST Nov 21, 2025
 
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