CHICAGO (WLS) — There is a chance of severe weather Wednesday afternoon.

There is a Severe Thunderstorm Warning until 4 p.m. for DuPage County and until 4:15 p.m. for Cook County.

A Severe Thunderstorm Watch has been issued for Boone, Cook, DeKalb, DuPage, Grundy, Kane, Kankakee, Kendall, LaSalle, Lake, McHenry and Will counties in Illinois and Lake and Porter counties in Indiana until 8 p.m.

There is a Tornado Watch for Kenosha, Racine and Walworth counties in Wisconsin until 6 p.m.

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There are ground stops at both O’Hare and Midway airports.

O’Hare has nearly 100 cancellations and delays of about 30 minutes, and Midway has seven cancellations and delays of about 30 minutes.

Wednesday will be very hot and humid, with highs in the low 90s.

Strong to severe storms are possible until about 8 p.m., ABC7 Chicago meteorologist Larry Mowry said.

Much of the area is under a Level 2 risk for severe weather; northwest Indiana and some south suburbs are under a Level 1 risk.

High winds look to be the biggest concern, but an isolated tornado is a possibility. Heavy rain can also cause concern for some localized flooding.

There is also a chance of storms Thursday.

Scattered showers and thunderstorms are expected this weekend, with Saturday being the day with higher rain chances.

There is an Air Quality Alert for the rest of Wednesday.

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