CHICAGO (CBS) — After a day of impressive wave action 6.5' to 9.5' waves, we still have wave heights of 4 to 6 feet overnight. The Beach Hazard statement stays active until 7 a.m. 

High-pressure overhead will bring sunny skies and dry conditions on Monday. 

Late-day high clouds may drift in as we switch to a warm & humid air mass starting Tuesday. 

Thunder will occur at times Tuesday through Friday, with many dry hours in between. A front will stall across our region, touching off showers and thunderstorms from time to time.

What to expect overnight

Clear and cool with a low of 57. 

Sunny Monday

Mostly sunny with a high of 76. Cooler lakeside

Warmer Tuesday

It will be warmer and more humid, with a high of 86. There is a 30% chance of showers and thunderstorms.