Expect another freeze across the high terrain between Butte and Missoula with another hard freeze for the Seeley/Swan area. Elsewhere, expect lows in the mid to upper 30s under clear skies.
The week starts up with a warming trend. Widepread mid to upper 70s for highs on Monday with the Missoula and Bozeman areas in the 80s both Tuesday and Wednesday. Lows will rise to the upper 40s to near 50 across much of the area by Wednesday morning.
Temperatures will cool again as a Pacific system arrives on Thursday. Moisture out ahead of this system will give us a slight chance of a sprinkle on Tuesday night and Wednesday, but most of us will see nothing more than increasing clouds.
Once Thursday arrives, rain chances will go up across the region Thursday through Friday with highs dropping back into the 60s. Moisture content appears low at this time with this system; which usually means little in the way of valley precipitation.