By 4:30 a.m. CT on Sunday , emergency management and law enforcement officials were reporting widespread flooding across much of northern Illinois and extreme northwest Indiana , with rainfall totals of 4 to 7 inches in certain areas , the weather service said . Records kept since 1871 say Saturday 's rain marks worst in more than century . Heavy rain more related to Tropical Storm Lowell in Gulf Coast 's than Chicago River Ike . Commissioner : Pacific flowed `` down the 5000 block of North Monticello Authorities say 6.49 inches of water fell on the city 's water district .
Records kept since 1871 say Saturday 's rain marks worst in more than century . Heavy rain more related to Tropical Storm Lowell in Gulf Coast 's than Chicago River Ike . Commissioner : Pacific flowed `` down the 5000 block of North Monticello Authorities say 6.49 inches of water fell on the city 's water district .