The Chicago area is under an extreme heat warning until very late Monday night. Temperatures during the day Monday are expected to climb near the record for June 23 of 97 degrees. Heat index values — a combo of temps and humidity — could be as high as 101.

Dangerous Midwest, Northeast heat wave brings hottest weather of year so far in Chicago and New York—hydration, cooling centers and health tips amid extreme heat. The post Extreme Heat Wave Blasts Midwest,

Tens of millions of people across the Midwest and East are enduring another sweltering day of dangerously hot temperatures as a sprawling June heat wave grips much of the U.S.