A warm front will move through the northern Rockies bringing Pacific moisture with it. There will be a period of very light rain or sprinkles Thursday night. Snow levels will remain quite high, from 6000 to 7000 feet. Friday will be mostly dry from just south and east of Missoula across southwest Montana to the Butte and Bozeman area. However, showers are likely north of I-90 in the Missoula area north to Kalispell. Lows in the upper 20s and 30s with highs in the 40.
A cold front will move into the region Saturday. It will bring a good chance of showers. Snow level will drop to the valley floors by Saturday night. However, most of the accumulating snow will stay in the mountains. Caution is advised traveling over the passes. Lingering rain and snow showers Sunday. Lows in the upper 20s and 30s with highs in the upper 30s and 40.
The unsettled weather pattern will continue into next week with similar temperatures.