A weather system will bring a pattern change with cooler temperatures and falling snow levels through Wednesday of next week. First a slow moving front will bring snow down to 5000 feet over north-central Idaho on Monday. Secondly, a Yellowstone low pressure system will bring wrap-around rain and snow generally to areas south of Interstate 90 Tuesday into Wednesday(70% chance). Temperatures will be near normal for this time of year. These types of weather systems can bring a wide range of snow levels depending on the intensity of the precipitation. Right now, the lowest snow levels could range from 1500 to 4000 feet. Mountain pass travel may be slick at times.