I saw first one, then 4-5 fuzzy lights that moved erratically, disappeared and reappeared several times.

I was driving north on Highway 55 when a large fuzzy light appeared in the sky just below the top of the windshield of my minivan. It was darting around erratically, then disappeared. It was very confusing. Then I saw 4-5 of the same kind of lights doing the same thing, but disappeared more quickly than the first one had. I’m unsure of the exact order, but I believe I saw a single light 3 times and a group of lights twice within a 1-2 minute period.