A storm system over the Oregon and Washington border will move south, then eventually turn east. It will rotate a few waves of energy and moisture into western Montana, especially southwest Montana around Butte and Bozeman through Saturday. With each wave will come a chance of valley rain and mountain snow. A few showers will be as far north and west as Missoula Wednesday night and Missoula and Kalispell on Friday. However, the brunt of the precipitation will fall from the southern Bitterroot Valley east to Butte and Bozeman. We could see one to three inches of snow in the higher elevations, including Monida and Lost Trail Passes along with the Big Sky and West Yellowstone areas. Outside of the rain and snow, skies will range from clear across northwest Montana to overcast elsewhere.
A LAKE WIND ADVISORY is posted Thursday for Flathead Lake. ENE winds 15 to 25 mph with gusts up to 35 mph. This will cause waves two to four feet on the lake.
Lows Wednesday night in the 30s with highs Thursday ranging from the upper 40s in Butte and Bozeman to the lower 60s in Missoula and Kalispell.
Lingering showers across southwest Montana Saturday. Otherwise, partly sunny skies this weekend with highs in the upper 40s to lower 50s in Bozeman, the 50s in Butte to the 60s in Missoula and Kalispell.
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