Hot, humid weather returns this weekend in Chicago

CHICAGO (CBS) — A warming trend is underway, eventually bringing oppressive heat and humidity as kids return to school Monday.

Expect high temperatures in the upper 80s to lower 90s this weekend with a few thunderstorms possible Saturday afternoon through Sunday morning.

Humidity gradually builds as breezy south winds ramp up, leading to heat indices in the upper 90s Sunday afternoon.

High temperatures rise to near record levels Monday as humidity worsens further.

This may lead to a Heat Advisory on Monday and Tuesday, with temperatures feeling over 105 degrees in some areas.

Heat relief arrives Wednesday with breezy northwest winds behind a cold front.

Tonight: Partly cloudy. Not as cool. Low: 64

Tomorrow: Partly cloudy and hot. Isolated late-day storms. High: 89

Sunday: Scattered morning rain, then hot and humid. High: 91