Moderate impacts on our Severe Weather Tracker due to increasing showers and thunderstorms and temperatures turning much cooler!
A Canadian cold front is moving into far northern Montana. It will slowly sink southward across the region by late Thursday. There will be a chance of showers and thunderstorms Wednesday evening and again during the day on Thursday. A few storms may contain heavy rain, small hail, lightning and gusty winds. Outside of the rain, skies will be partly to mostly cloudy. Lows Wednesday night in the 40s in Butte to the 50s elsewhere. Highs Thursday in the upper 60s in Kalispell and Butte to the 70s in Missoula and Bozeman.
Much cooler air will move into the region Thursday night through the weekend as the front progresses south. There will be a good chance of showers during this period with autumn like temperatures. Highs will drop to the 60s to around 70. Butte will see highs remaining in the 50s on Saturday. Lows will drop to the mid 30s to mid 40s. Substantial rain is possible, especially from Glacier Park south along the divide into the Bozeman area, but we all have a good chance of rain.
Tourists and those venturing into Glacier National Park need to be cautious of the much cooler weather. Snow levels will drop to 6500 feet in the park and 8000 feet across the rest of western Montana.