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

Karst US-191 MP 55.3 (MTKAR)

Lat: 45.34534°NLon: 111.17261°WElev: 5699.0ft.

unknown precip

56°F

13°C

Humidity 43%
Wind Speed SSE 11 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 15 Nov 01:45 PM MST
Extended Forecast for

4 Miles E Big Sky MT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 55. Southwest wind around 8 mph, with gusts as high as 18 mph.

    High: 55 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 33. South wind around 5 mph becoming calm in the evening.

    Low: 33 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 57. Calm wind becoming south around 6 mph in the afternoon.

    High: 57 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: A 40 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 36. South wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Chance Rain

  • Monday

    Monday: Rain likely before 8am, then rain and snow likely between 8am and 2pm, then rain likely after 2pm. Mostly cloudy, with a high near 50. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 50 °F

    Rain/Snow
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 32. Light south southwest wind.

    Low: 32 °F

    Chance Rain

  • Tuesday

    Tuesday: A chance of rain before 8am, then a chance of rain and snow between 8am and 11am, then a chance of rain after 11am. Partly sunny, with a high near 49. Light south southwest wind. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 49 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A slight chance of rain before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: 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. Mostly cloudy, with a high near 45.

    High: 45 °F

    Chance
    Rain/Snow

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 55. Southwest wind around 8 mph, with gusts as high as 18 mph.
Tonight
Increasing clouds, with a low around 33. South wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 57. Calm wind becoming south around 6 mph in the afternoon.
Sunday Night
A 40 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 36. South wind around 5 mph becoming calm in the evening.
Monday
Rain likely before 8am, then rain and snow likely between 8am and 2pm, then rain likely after 2pm. Mostly cloudy, with a high near 50. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. Little or no snow accumulation expected.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 32. Light south southwest wind.
Tuesday
A chance of rain before 8am, then a chance of rain and snow between 8am and 11am, then a chance of rain after 11am. Partly sunny, with a high near 49. Light south southwest wind. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tuesday Night
A slight chance of rain before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 29. Calm wind.
Wednesday
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. Mostly cloudy, with a high near 45.
Wednesday Night
A slight chance of rain and snow before 8pm, then a slight chance of snow between 8pm and 11pm. Mostly cloudy, with a low around 22.
Thursday
A slight chance of snow. Mostly sunny, with a high near 44.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Big Sky MT
 45.26°N 111.26°W (Elev. 5997 ft)
Last Update:
2:18 pm MST Nov 15, 2025
Forecast Valid:
2pm MST Nov 15, 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