Chicago Weather: Muggy And Warm

CHICAGO (CBS) -- The low for Tuesday night is 70. Patchy fog in spots could drop visibility around daybreak.

Wednesday will be warm and humid with a slight chance of a few pop-up showers or thunderstorms during the peak heating of the day.

The high for Wednesday is 85.

On Thursday, look for a 30 percent chance of showers or thunderstorms and a high of 86.