CHICAGO — Storms are expected to hit Chicago Friday and Saturday — when Lollapalooza will be in full swing. “This has been the craziest storm season that honestly I can remember, and I’ve been doing this for nearly 30 years,” said Bill Snyder, weather producer at WGN-TV. Chicago has had a particularly stormy summer, with the latest round of heavy rainfall flooding basements and downing trees Monday. The National Weather Service put out a hazardous weather outlook just before Lolla weekend in 2024, predicting high temperatures and heavy rain. Some clouds moving in in the afternoon but no rain,” Snyder said.