Good morning. Illinois. I'm Aaron Jolly. Folks, that gray ceiling you're waking up under? Think of it as a lid on a pot that's about to boil over. A massive front stretching from Georgia to Colorado is winding up. And we're sitting square in its crosshairs. High pressure over the Great Lakes is holding it off for now. But not for long. In the next 24 hours. Step outside in Chicago and you'll feel 38 degrees with that damp northeast wind cutting right through your layers. The kind of chill that makes your coffee cool too fast. You stay dry today and tonight, but enjoy it. That's the last boring weather you'll see for a while. Now drive south on I-55 and things get interesting quick. Central Illinois is already fogging up, with showers creeping in this afternoon. Highs push to 46 degrees. Then around 9 P.M., the sky opens. Thunderstorms roll in wit ...