Cincinnati/ Weather & Environment

Cincinnati Sizzles Like July as Weekend Storms and Cooldown Loom

AI Assisted Icon
Published on September 15, 2026
Cincinnati Sizzles Like July as Weekend Storms and Cooldown LoomSource: Google Street View

Cincinnati is waking Tuesday to clear skies and temperatures near 57 degrees, but the calm start will give way to a very warm afternoon. The thermometer is expected to climb to 93 degrees, making this another summer-like day in the middle of September.

The National Weather Service calls for sunny skies, a south wind around 5 mph and no rain Tuesday. Tonight will stay mostly clear, with a low near 71 and only a slight chance of precipitation.

Heat Builds Before Storm Chances Return

Wednesday will be just as hot, with a high near 93 and heat indices that could briefly approach 100 degrees in the far southwestern portion of the ILN forecast area. Initial storms are expected Tuesday evening into Wednesday morning, while the timing and coverage of later storm chances remain uncertain before another warm night near 71.

Thursday keeps the heat going under mostly sunny skies, with a high near 94. The week-ahead pattern is a fresh shift from Hoodline's earlier forecast, as the hot stretch now hangs on before a cooler turn next week.

Sunday Brings A Wetter Turn

Friday should be a little less intense at 88 degrees, followed by a mostly sunny Saturday with temperatures in the upper 70s to low 80s. Sunday brings the first more substantial rain chance, with a 40% chance of showers and thunderstorms and a high near 88; some storms could produce brief heavy rain.

Showers and thunderstorms remain possible Sunday night. Monday looks noticeably cooler at 79 degrees, with increasing shower and thunderstorm chances that could keep outdoor plans unsettled.

For Tuesday and Thursday, the best time for outdoor work or exercise will be early in the day or toward evening, when temperatures are lower. No watches, warnings or advisories are listed for Ohio, Kentucky or Indiana in the current forecast.