Expect widespread snowfall on Friday and Saturday

There will be some isolated snow showers tonight, particularly before midnight as a disturbance continues to move through our area. Most locations expect less than an inch of new snow accumulation, but up to 4 inches of snow accumulation is possible on some mountains in central Montana. Slippery road conditions are also expected in places where there was some snow today/night, so please be careful when driving.

We will also have decreasing clouds and cool temperatures tonight as lows will be in the teens and 20s. There will also be a bit of a breeze tonight as sustained wind speeds will be between 5 and 20mph.

For tomorrow we will have increasing clouds with scattered snow and rain showers, especially in the afternoon and evening when another disruption sweeps our area. Snow accumulations are generally on the lighter side, with most locations receiving less than an inch, but up to 4 inches of fresh snow accumulation is possible in some of the mountain ranges in central Montana.

There will also be breezes in some areas tomorrow as sustained wind speeds will be between 10 and 25mph. Tomorrow will also be chilly as highs will range from the mid 20’s to the low 40’s.

There will be scattered rain and snow showers on Thursday while another disruption sweeps our area. As temperatures will be warmer on Thursday (highs in the mid-to-high 30s and low-to-mid 40s), much of the precipitation that falls in the lower elevations will come in the form of rain. Little to no snow accumulation is expected in lower elevations Thursday, while up to 4 inches of fresh snow accumulation is possible on some mountains in central Montana.

We will also have strong winds along the Rocky Mountain front on Thursday as sustained winds will range between 20 and 40 mph and gusts in excess of 60 mph will be possible at times. East of the Rocky Mountain Front we will have gusty to strong winds Thursday as sustained winds will range between 10 and 30 mph and gusts in excess of 50 mph will be possible at times.

Broad snowfall is then likely on Friday and Saturday when a strong cold front moves through our area. This snow can be heavy at times, especially in western and central Montana. Right now, it looks like western and central Montana will experience the highest snowfall, while lower snowfall is expected in east Montana and along the Hi-Line in north-central Montana. This snow will make for difficult travel conditions, so avoid traveling on these two days if possible.

This cold front will also bring much colder air into our area. Friday highs will still be in the 30s in many places, but temperatures will drop, particularly in the latter part of the day. Highs on Saturday will then only be in the single-digit and ten-digit range. It will also be windy on these two days as sustained wind speeds will be between 10 and 20mph and this will be a cold wind as it will be from the north.

Bitterly cold temperatures are then expected on Sunday and Monday as highs will be in the -0 and 0 range and lows in the -0 and -10 range. Temperatures will then warm up a bit as we move into Tuesday as highs will be in the 0s and 10s. We will also have partly cloudy skies from Sunday to Tuesday. There will also be occasional snow showers during these three days, especially in the mountains.

Source