Good afternoon. Illinois. I'm Jack O'Malley. Folks, there's a warm front draped across southern Illinois right now. And it's splitting this state in two. You step outside in Chicago and it's 36 degrees under a gray ceiling. Drive three hours south and it feels like a different season. Twenty degrees warmer down there. That boundary is the story tonight. In the next 24 hours. South of that front is where the action lives. Central Illinois sees showers and thunderstorms rolling in this evening. Rain is all but guaranteed, with up to an inch possible. Southwest of Jacksonville, there's a marginal severe risk. Hail is the main threat. Nothing catastrophic, but worth keeping an ear out. Northern Illinois? You stay cool and dry tonight. Lows near 30 degrees. Quiet skies. Almost boring compared to what's happening downstate. Chicagoland splits the diffe ...