Parts of Chicagoland should brace for some serious rain later Tuesday into Wednesday. The remnants of Tropical Storm Beryl are moving up through southern Illinois on Tuesday morning and should arrive in Chicagoland by Tuesday afternoon. With it will come tropical rain, which has the potential to drop heavy rainfall very quickly. Areas most affected will be the southeastern portion of Chicagoland and Northwest Indiana, which are under a Flood Watch from 4 p.m. Tuesday to 1 p.m. Wednesday. Some of these areas could see between 3 to 5 inches of rain through early Wednesday afternoon. Areas to the north and west, however, are projected to receive much less rainfall. Then, very hot and humid air will move into Chicagoland for the end of the week through the weekend, with dew points well into the 70s and air temperatures around 90.