BILLINGS — High pressure ridging will bring mostly dry weather on Thursday as daytime temperatures warm, with highs in the upper 70s to low 80s. Smoke from Canadian wildfires will impact eastern Montana down into Wyoming, so individuals with respiratory ailments should monitor air quality conditions before going outside.
There will be a chance of isolated showers and thunderstorms west of Yellowstone County late Thursday afternoon and evening, ahead of a weak cold front that will sweep through Thursday night into Friday. There’s a slight chance of isolated showers in east-central Montana through early Friday afternoon.
The weekend will be dry and warm ahead of a Pacific low that will bring a good chance of showers starting late Sunday afternoon, as it pulls ample moisture up from the Gulf. This will kick off an unsettled period of weather through the middle of next week, with daily showers and possible thunderstorms. …