National Weather Service

News Headlines

The Regional Temperatures and Precipitation Product for the State of Montana (RTPMT) will be discontinued on May 6, 2026.

Hazardous Weather Conditions

Winter Storm Warning until April 17, 12:00 AM MDT

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

27°F

-3°C

Humidity	85%
Wind Speed	W 0 MPH
Barometer	NA
Dewpoint	23°F (-5°C)
Visibility	NA
Last update	16 Apr 02:15 PM MDT

More Information:

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

Extended Forecast for

13 Miles ESE Big Sky MT

Winter Storm Warning April 16, 02:34pm until April 17, 12:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning April 16, 02:34pm until April 17, 12:00am
NOW until 12:00am Fri
Winter Storm Warning
This Afternoon
High: 19 °F
Heavy Snow
and Areas
Blowing Snow
Tonight
Low: 7 °F
Snow Likely
then Heavy
Snow
Friday
High: 20 °F
Heavy Snow
Friday Night
Low: 9 °F
Slight Chance
Snow then
Partly Cloudy
Saturday
High: 34 °F
Sunny
Saturday Night
Low: 20 °F
Mostly Clear
Sunday
High: 43 °F
Sunny
Sunday Night
Low: 29 °F
Mostly Cloudy

Detailed Forecast

This Afternoon

Snow, mainly before 5pm. The snow could be heavy at times. Areas of blowing snow before 5pm. High near 19. Wind chill values as low as zero. West northwest wind around 17 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 3 to 7 inches possible.

Tonight

Snow likely, mainly before 8pm. The snow could be heavy at times. Mostly cloudy, with a low around 7. Wind chill values as low as -10. West northwest wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

Friday

Snow likely, mainly before 5pm. The snow could be heavy at times. Partly sunny, with a high near 20. Wind chill values as low as -10. West northwest wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of 3 to 5 inches possible.

Friday Night

A 20 percent chance of snow before midnight. Partly cloudy, with a low around 9. Wind chill values as low as -5. West southwest wind 10 to 17 mph, with gusts as high as 26 mph.

Saturday

Sunny, with a high near 34. South southwest wind 15 to 17 mph, with gusts as high as 28 mph.

Saturday Night

Mostly clear, with a low around 20. South southwest wind around 21 mph, with gusts as high as 28 mph.

Sunday

Sunny, with a high near 43. South southwest wind 15 to 20 mph, with gusts as high as 24 mph.

Sunday Night

Mostly cloudy, with a low around 29. South southwest wind 11 to 13 mph, with gusts as high as 24 mph.

Monday

Mostly sunny, with a high near 49.

Monday Night

Partly cloudy, with a low around 33.