It’s been dry this October in Chicago with just 05.” on the books so far at the city’s official rain gauge at O’Hare Airport. Actually, rainfall has been spotty and sparse in the Chicago area since mid-September, with the city’s last significant rainfalls of 1.45 inches coming on September 11, followed by 0.44 inches on September 18. Significant rain should occur early this week as showers/t-storms develop ahead of a cold front