Torrential rain expected at Lollapalooza. Here’s what to know.

Lollapalooza attendees may want to keep a poncho handy Friday afternoon, with forecasters expecting showers to move into downtown Chicago during the festival's second day. Rain is expected to reach the downtown Chicago area between 1 and 2 p.m. Friday, with scattered showers developing through the afternoon before becoming more widespread and heavier during the evening and overnight, the National Weather Service said Friday morning. "Everybody is going to get rain and most likely see rain…