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.

Clear

57°F

14°C

Humidity 47%
Wind Speed NNW 5 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 15 Nov 03:53 PM MST
Extended Forecast for

Montana City MT

  • Tonight

    Tonight: Patchy fog before 2am, then patchy fog after 5am. Otherwise, partly cloudy, with a low around 34. Southwest wind around 6 mph becoming calm in the evening.

    Low: 34 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 54. Calm wind becoming east northeast around 5 mph.

    High: 54 °F

    Areas Fog
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 38. Calm wind becoming south around 5 mph.

    Low: 38 °F

    Slight Chance
    Rain

  • Monday

    Monday: A 50 percent chance of rain. Mostly cloudy, with a high near 52. Calm wind becoming west around 6 mph in the afternoon.

    High: 52 °F

    Chance Rain

  • Monday Night

    Monday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 34. Light southwest wind.

    Low: 34 °F

    Chance Rain

  • Tuesday

    Tuesday: A 40 percent chance of rain. Partly sunny, with a high near 48. Light and variable wind.

    High: 48 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 31. Light and variable wind. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A chance of rain and snow, mainly before 11am. Partly sunny, with a high near 41. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 41 °F

    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog before 2am, then patchy fog after 5am. Otherwise, partly cloudy, with a low around 34. Southwest wind around 6 mph becoming calm in the evening.
Sunday
Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 54. Calm wind becoming east northeast around 5 mph.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 38. Calm wind becoming south around 5 mph.
Monday
A 50 percent chance of rain. Mostly cloudy, with a high near 52. Calm wind becoming west around 6 mph in the afternoon.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 34. Light southwest wind.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 48. Light and variable wind.
Tuesday Night
A chance of rain before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 31. Light and variable wind. Chance of precipitation is 30%. Little or no snow accumulation expected.
Wednesday
A chance of rain and snow, mainly before 11am. Partly sunny, with a high near 41. Calm wind becoming north northwest around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 24.
Thursday
Mostly sunny, with a high near 43.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 45.
Friday Night
Partly cloudy, with a low around 27.
Saturday
A slight chance of rain and snow. Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montana City MT
 46.53°N 111.94°W (Elev. 4199 ft)
Last Update:
2:18 pm MST Nov 15, 2025
Forecast Valid:
4pm MST Nov 15, 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