Sunny, Dry Conditions To End Your Week

A high pressure system is taking shape far to the north of the Stateline.
It will begin to greatly impact our weather as early as the predawn hours of Thursday. As it brings northerly flow to the Stateline, it will bring our dewpoint temperatures down into the mid-50's calling for dry, comfortable conditions, few clouds, and little, if any, rain. The northerly winds will also advect cooler temperatures into the region likely keeping us below 80 degrees for Thursday, Friday, and Saturday.
There is a slight chance that, on Thursday, northeasterly flow will pull some moisture from the lake and throw up a few brief, light showers in the evening hours of tomorrow. Otherwise, no rain is expected.
The highest confidence for clear skies and no rain belongs to Friday. The system will propagate southward and position itself over Lake Superior. Being much closer to the Stateline, we will more easily feed off of the system's descending air which makes it very difficult for rain and clouds to form.
The system will strengthen rapidly overnight Friday into Saturday as it will move to our northeast. No rain and few clouds are expected for Saturday as well.
As the high pressure center moves to our far northeast on Sunday, the clockwise rotation of the winds as they diverge around the system will result in south-southeasterly flow which will advect a good amount of moisture into the region. As that moisture builds throughout the day, we will have a chance for showers come Sunday evening.
On Monday, an area of low pressure will sit to our northwest and drag along with it a strong cold front which will likely provide us with hefty showers as the front passes over late in the day.