The beginning of this week will be a repeat of Sunday's nice weather- sunny and warm, with highs in the upper 80s and low 90s. This calm period is due to a high-pressure system setting up over the western United States. Right behind this high-pressure ridge is a disturbance which will move through quickly on Thursday. Drizzly, cool weather will hit most of Montana on Thursday, but then we'll end the work week with a warmup.
Friday through the weekend, August will be back with partly sunny skies and warm weather.