Chicago faces a wet, stormy Saturday morning with a flood watch in effect through 10 a.m. A quieter stretch arrives Monday before more storms return midweek.

From Amherst to Brewster, swimmers are locked out over bacteria and algae as sunny, 80-degree weather rolls in.

St. Louis will feel close to 110 degrees through Sunday as an Extreme Heat Warning continues. A cooler Monday is finally on the way.

Philadelphia gets a sunny, warm Saturday before a stormy Sunday brings heavy rain, thunderstorms and a flash-flood threat.

D.C. gets a mostly sunny 89-degree Saturday before heavy rain and severe thunderstorms threaten Sunday.

Raleigh could feel like 105 degrees Saturday before late-day thunderstorms enter the picture. The heat intensifies again Monday.

Cincinnati could hit 91 degrees Saturday before rounds of thunderstorms move in. Heavy rain, flooding concerns and a cooler, drier change are ahead.

Cleveland’s sunny Saturday start will give way to thunderstorms, heavy rain and flooding concerns through Sunday.

Columbus faces a Flood Watch from noon Saturday through Sunday morning as storms bring a serious heavy-rain and flooding threat. Cooler, drier weather arrives early next week.

Baltimore gets a sunny, nearly 90-degree Saturday before heavy rain and thunderstorms take over Sunday.

Pittsburgh's foggy Saturday morning should clear into sunshine before thunderstorms arrive late Saturday night and continue through Sunday.

Orlando’s Saturday forecast calls for 97 degrees and heat indexes up to 112 under a Heat Advisory. A few storms may pop up after 3 p.m.

Jacksonville faces a heat index near 112 Saturday, followed by afternoon thunderstorms and another stretch of near-100-degree days.