We're keeping a close watch on the heat across Southern Illinois. A dome of high pressure is locked in place, bringing us another day of low to mid 90s tomorrow.

The spike in the wholesale cost of electricity, which ComEd buys at an annual auction and then passes on to its customers, paired with increased energy usage, added $67.28 month-over-month to the

The National Weather Service issued Extreme Heat Watches and Flood Advisories throughout Illinois. Here's the forecast.

Extreme heat is blanketing the Chicago area with heat index readings expected to be up to 110. There was also a Severe Thunderstorm Warning for parts of the area Thursday.

Corn sweat is an agricultural phenomenon that makes humidity during a heat wave even worse, especially in states like Illinois where it's a major cash crop.

An extreme heat watch has been issued for all of Chicagoland on Wednesday and Thursday as temperatures and humidity spike.

This spring, Ameren announced those price hikes for June to September, thanks to an increase in demand. But the recent extreme heat is driving up those prices.

More than half the country, including Illinois, is currently in a heat dome. Here's what that means and how to stay safe during excessive heat.