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 (HRWM8)

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

NA

43°F

6°C

Humidity 82%
Wind Speed SSE 1 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 16 Nov 10:53 AM MST
Extended Forecast for

6 Miles SW Marysville MT

  • Today

    Today: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 45. South southwest wind around 6 mph.

    High: 45 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A 20 percent chance of rain between midnight and 1am. Mostly cloudy, with a low around 34. Southwest wind 3 to 6 mph.

    Low: 34 °F

    Slight Chance
    Rain

  • Monday

    Monday: A 40 percent chance of rain. Partly sunny, with a high near 44. West wind 5 to 8 mph.

    High: 44 °F

    Chance Rain

  • Monday Night

    Monday Night: A chance of rain before 2am, then a chance of rain and snow. Mostly cloudy, with a low around 32. West wind 3 to 6 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 32 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Tuesday

    Tuesday: A chance of rain and snow before 8am, then a chance of snow between 8am and 11am, then a chance of rain and snow after 11am. Partly sunny, with a high near 40. West wind 3 to 7 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 40 °F

    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before 8pm, then a chance of snow. Mostly cloudy, with a low around 28. West wind around 6 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 28 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Wednesday

    Wednesday: A chance of snow before 1pm, then a chance of rain and snow between 1pm and 4pm, then a chance of snow after 4pm. Partly sunny, with a high near 35. West northwest wind 6 to 8 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 35 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 24. West northwest wind around 6 mph becoming light and variable in the evening.

    Low: 24 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 45. South southwest wind around 6 mph.
Tonight
A 20 percent chance of rain between midnight and 1am. Mostly cloudy, with a low around 34. Southwest wind 3 to 6 mph.
Monday
A 40 percent chance of rain. Partly sunny, with a high near 44. West wind 5 to 8 mph.
Monday Night
A chance of rain before 2am, then a chance of rain and snow. Mostly cloudy, with a low around 32. West wind 3 to 6 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tuesday
A chance of rain and snow before 8am, then a chance of snow between 8am and 11am, then a chance of rain and snow after 11am. Partly sunny, with a high near 40. West wind 3 to 7 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tuesday Night
A chance of rain and snow before 8pm, then a chance of snow. Mostly cloudy, with a low around 28. West wind around 6 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday
A chance of snow before 1pm, then a chance of rain and snow between 1pm and 4pm, then a chance of snow after 4pm. Partly sunny, with a high near 35. West northwest wind 6 to 8 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday Night
Partly cloudy, with a low around 24. West northwest wind around 6 mph becoming light and variable in the evening.
Thursday
Mostly sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 37.
Friday Night
A slight chance of snow. Mostly cloudy, with a low around 29.
Saturday
A chance of rain and snow. Partly sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SW Marysville MT
 46.7°N 112.38°W (Elev. 6184 ft)
Last Update:
8:42 am MST Nov 16, 2025
Forecast Valid:
11am MST Nov 16, 2025-6pm MST Nov 22, 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