An entrenched low pressure system centered just east of Lake Huron will generate gusty northwest winds, spreading cloudiness back over and pulling cool Canadian-source air into the western Great Lakes and Midwest the first half of the week. The instability created by this far-reaching low could trigger scattered afternoon and nighttime showers later Monday and Tuesday. The cloud cover along with the unseasonably cold air will result in temperatures struggling to warm out of the 60s, even during the afternoon, especially Tuesday.
Low weakens and warm air returns late week
As the low pressure system gradually moves east and weakens, warm air that has been poised in the central and northern Plains is forecast to surge east with the eastern edge of the warm air dome reaching Illinois and Wisconsin this weekend. Computer models are not all in agreement at this time, however there appears to be a good chance for a further advance of the warm air early next week with widespread readings in the 90s possible
