http://www.flightcentre.com is a website allowing you to book your cheapest flights to Chicago and also guide you to enjoy your vacation in Chicago or guide you with required information. They provide you with a lot of packages right from accommodation to attractions in Chicago.

If you have a plan to have a good booking for your vacation, check here.

http://www.flightcentre.co.uk/info/special/_usa/flights-to-chicago

Once you book, there is nothing to worry about your tour.

Summers in Chicago often bring along bouts of rain with it, and the summer is known to be the rainiest of all the seasons. The city witnesses precipitations of about 36 inches during the summers and thunder storms are a common occurrence during the summers.

The rains during summers arise owing to the short lived storms. The month of July and August witness maximum rainfalls and are the wettest months of the year in Chicago. Though, August often out pours July as the wettest month. The city witnesses rainfalls through out the year.

http://en.wikipedia.org/wiki/Climate_of_Chicago

http://www.weatherforyou.com/weather/Illinois/Chicago.html