CHICAGO (CBS) — A stray storm is possible Tuesday until the sun goes down and we lose the daytime heating.

Evening Planner: 06.30.20

(Credit: CBS 2)

The overnight low is 70.

Tomorrow's Planner: 06.30.20

(Credit: CBS 2)

On Wednesday, it will be mostly sunny with a stray storm chance.

High Temperatures: 06.30.20

(Credit: CBS 2)

7 Day Forecast with Interactivity: 06.30.20

(Credit: CBS 2)

Look for building the heat into the holiday weekend with a string of 90s.

Dewpoint Forecast: 06.30.20

(Credit: CBS 2)

It is humid Tuesday, but we do see dew points on a downward trend by the weekend.