ST. LOUIS – It will be sunny and hot again Thursday. Highs will be in the low 90s.

By Thursday night, a storm system moves in that will bring some scattered showers and isolated thunderstorms our way Friday morning. Timing looks to be 3 a.m. to 9 a.m. with showers moving northwest to southeast.

Still hot Friday and more humid thanks to the rain; highs will be in the low 90s.

Saturday could bring a few spot morning showers, otherwise partly to mostly cloudy skies and highs in the upper 80s.

Fall starts officially on Sunday and that is when some cooler temperatures will finally start to arrive. Watching for more rain chances Sunday evening and night and again on Wednesday.