Chicago swelters under Extreme Heat Warning

Dangerous heat will continue across Chicago through Thursday before storms bring a chance for relief heading into the holiday weekend.

Extreme Heat Warning blasts Chicago area
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The Extreme Heat Warning is now in effect for all of Chicagoland until Thursday night. 

Chicago weather: The first heat wave of 2026

Chicagoland's first heat wave of the year is here. Heat index values near 105 are expected through Wednesday, with an extreme heat warning in Chicago.

Chicago weather: Cool finish to the week before dangerous heat arrives

After two more mild days, Chicago is bracing for a major heat wave that could bring temperatures in the mid-90s and triple-digit heat indices for much of next week.