Cold Front Brings Snow and Sharp Temperature Drops to Montana

After unusually warm conditions and record-breaking temperatures across parts of southern Montana and northern Wyoming, an approaching storm will bring colder air, rain, and snow across the region over the weekend. The incoming weather system will increase winter hazards, with mountain areas expected to receive more than a foot of snow and temperatures falling sharply by Sunday.

According to KTVQ's Billings-area forecast published October 9, 2026, strong winds will continue to elevate fire danger through Friday evening, while a cold front and a trough of low pressure move into Montana and Wyoming. Red Flag Warnings will remain in effect through Friday evening.

The forecast calls for partly cloudy conditions, occasional clear skies, and persistent breezes late Friday night and into early Saturday. Overnight temperatures are expected to remain relatively mild before the approaching system brings a significant change in conditions.

Rain showers and isolated thunderstorms are possible Saturday as colder air spreads across the northern Rockies. The transition toward winter conditions is expected to accelerate late Saturday and early Sunday, when falling temperatures will turn rain into snow in many locations.

Winter Weather Advisories will cover lower elevations across much of western and central Montana, while Winter Storm Warnings will apply mainly to mountain areas from Saturday evening through Monday morning, according to the forecast.

Mountain communities are expected to receive more than 12 inches of snow. Butte and Helena could see 3 to 8 inches, while valleys in southwestern Montana are forecast to receive 2 to 5 inches. Lower elevations in eastern Montana may experience a mixture of rain and snow at times.

Temperatures will also fall substantially over the next 48 hours. Many locations reached highs in the 80s on Friday, but temperatures are expected to decline throughout Saturday. By Sunday, most areas will struggle to reach highs in the 30s to the lower and middle 40s.

Rain and snow may linger into Monday before conditions begin to improve. The forecast calls for decreasing cloud cover on Tuesday, followed by a gradual warming trend during the latter half of the week.