From 1981 to 2010, Chicago summers have had an average of 14 90-degree days, said Jamie Enderlen, a meteorologist with the National Weather Service. Officials have issued an air quality alert.

Just in time for kids returning to school after a snowless and mild holiday break, temperatures will nose-dive in the suburbs, forecasters say. “Winter is finally arriving,” National Weather ...

A short but powerful thunderstorm rolled through central and southern Lake and Porter counties early Wednesday evening armed with high winds and hail that knocked out power, damaged fences and ...