Spring, Summer, Fall, wind is wind
Zion works on a North and I wouldn't even try it on a south. Waukegan has a much better setup for this and is only 8 minutes away.
Water temps are right about 40*. Bring all your equipment you have gloves, booties, hoodie, 5mm minimum on the wetsuit, etc.
Should be a good day. I'm hoping for Waukegan as well, but if it swings SW I'll be at Wolf lake. Either way it will be a bit gusty, but should be nice.