We are tracking a cold front that will bring the threat of showers and thunderstorms to the region late Thursday afternoon and evening. Any thunderstorm that develops will be capable of producing winds in excess of 30 mph and lightning along with brief heavy rain and small hail. The best location for thunderstorms will be west of the divide, from the northern Bitterroot Valley through the Missoula Valley to the Mission Valley. Otherwise, partly cloudy with lows in the 40s.
Gusty east northeast winds will develop on Friday ranging from 15 to 30 mph, with some higher gusts. It will be cooler with highs ranging from the upper 50s in Butte to the 60s to around 70 elsewhere. There will be a chance of a shower, but the best chance of rain will shift to southwest Montana around Bozeman and Butte as an upper level storm develops south of the state.
Mostly dry with partly to mostly sunny skies Saturday with highs in the 60s in the Bozeman and Butte areas to the 70s in Missoula and Kalispell. There is a chance of showers in southwest Montana on Sunday with similar temperatures as Saturday.