A dangerous heat wave has descended on Chicagoland this week, with extreme heat and humidity to persist through Thursday. Temperatures will get well into the 90s, but heat index values will soar

A dangerous heat wave is expected to scorch Chicago beginning Wednesday. A heat advisory has been issued from 10 a.m. Wednesday to 10 p.m. Thursday for the greater Chicago area for heat indices of 100 to 110 degrees.

The heat index is expected to hit 105 to 115 degrees in the metro area on Wednesday. The setting sun won't provide much relief — temperatures will likely remain above 90 degrees into the evening hours.

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

Chicago heat wave, which took place 30 years ago this week, remains the Chicago area's deadliest weather disaster.

Thirty years after a heat wave left more than 700 people dead, Northwestern researchers asked residents to rank solutions for the city to improve planning before extreme heat hits.

A potentially dangerous heat wave bringing temperatures in the upper 90s and “very humid” conditions that could push daily heat indexes over 105 degrees is expected to last from Wednesday morning