Looks very good for tomorrow. I'm planning on hitting the sweet waves at St Joe (Silver Beach) sometime in the late afternoon.
Looks like the Chicago area will be best earlier in the day, then the east side of the lake will have the better conditions later in the day.
I was at Little Sable Point all day Sunday (riding my 5.3 & wave board!) and the water was warm - shorts only. The air may be cooler than the water tomorrow...