Looks like Chicagoland is going to get some rain today, but the worst parts of it look like they'll only affect the northern reaches of the metropolitan area.
The National Weather Service issued severe thunderstorm warnings for McHenry County, Lake County, and northern Cook County earlier today for storms that have since moved out over Lake Michigan. That storm was delivering winds in excess of 60 miles and hour, along with large hail, heavy rain, and lightning, with reports of as much as 2.49 inches of rain falling in 55 minutes in Huntley, 1.6 inches in about 30 minutes in Lake Zurich and 1.3 inches in about 30 minutes in Arlington Heights. Algonquin got some nickel-sized hail.
The rest of the Chicagoland got the stormy weather as well, and areas souith and east here will get a lot more this afternoon while it clears around the city. The characteristics of the storms that hit this morning – strong winds, heavy rain in some places, lighting, and possible small hail – are pretty much what we've been getting all summer.
Those built south and west of Chicago and have since moved east over the lake. One early casualty of that storm system is the Chicago Air and Water Show, which was delayed while the storm moved through. But a rain-free forecast for the rest of the day should allow the show to finish this afternoon.