It is shaping up to be another hot day for much of western Montana. Highs will warm into the upper 80s in Butte and Bozeman to the upper 90s in Missoula.  Triple digit heat is possible around Eureka and Libby in northwest Montana.  Monsoonal moisture will once again spark off a few isolated showers and thunderstorms, especially around Butte and Bozeman. A slight chance for Missoula and Kalispell.

There is an increased threat of thunderstorms Friday and Saturday. A stronger wave of energy and moisture will move through the region.  During the afternoon, showers and storms will develop area wide. Highs in the 80s to lower 90s.

Shower and thunderstorm chances will diminish slightly Sunday. However, we can't completely rule out a late afternoon storm. More of the same is expected next week.