PNS25-72: Soliciting Comments through December 19, 2025 on the Discontinuation of the Max/Min Temperature and Precipitation Table Product (RTP) for all NWS Alaska Region, Eastern Region, and Western Region Offices.

Hazardous Weather Conditions

Winter Storm Warning in effect from December 4, 11:00 AM MST until December 6, 05:00 AM MST

Current conditions at

Yellowstone Club - Base Area (YCBAS)

Lat: 45.23924°NLon: 111.41476°WElev: 7200.0ft.

22°F

-6°C

Humidity	98%
Wind Speed	SW 4 MPH
Barometer	NA
Dewpoint	22°F (-6°C)
Visibility	NA
Wind Chill	17°F (-8°C)
Last update	04 Dec 02:00 AM MST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Big Sky MT

Winter Storm Warning December 4, 11:00am until December 6, 05:00am

Click here for hazard details and duration

Winter Storm Warning

Overnight
Low: 16 °F
Mostly Cloudy
Thursday
High: 32 °F
Slight Chance
Snow and
Patchy Fog
then Snow
Likely
Thursday Night
Low: 22 °F
Snow
Friday
High: 36 °F
Snow
Friday Night
Low: 26 °F
Snow
Saturday
High: 36 °F
Snow
Saturday Night
Low: 20 °F
Chance Snow
Sunday
High: 36 °F
Slight Chance
Snow
Sunday Night
Low: 24 °F
Chance Snow

Detailed Forecast

Overnight

Mostly cloudy, with a steady temperature around 16. Calm wind.

Thursday

Snow likely, mainly after 2pm. Patchy fog between 7am and 8am. Otherwise, increasing clouds, with a high near 32. Calm wind becoming south southwest 5 to 7 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

Thursday Night

Snow. Low around 22. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New snow accumulation of 4 to 6 inches possible.

Friday

Snow. High near 36. Calm wind becoming southwest 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Friday Night

Snow. Low around 26. West southwest wind 3 to 7 mph. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Saturday

Snow. High near 36. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Saturday Night

A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 20. West southwest wind around 5 mph becoming calm in the evening. New snow accumulation of around an inch possible.

Sunday

A slight chance of snow. Mostly cloudy, with a high near 36. Calm wind becoming south southwest 5 to 8 mph in the afternoon. Winds could gust as high as 21 mph.

Sunday Night

A chance of snow. Mostly cloudy, with a low around 24.

Monday

A slight chance of snow. Partly sunny, with a high near 40.

Monday Night

A chance of snow. Mostly cloudy, with a low around 29.

Tuesday

A chance of rain and snow. Mostly cloudy, with a high near 44.

Tuesday Night

Snow likely. Mostly cloudy, with a low around 30.

Wednesday

Snow likely. Mostly cloudy, with a high near 45.