Columbus

Weather Whiplash on the Way: Warmup, Storms, and Cooler Air to Greet Columbus and Cincinnati

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Published on August 18, 2025
Weather Whiplash on the Way: Warmup, Storms, and Cooler Air to Greet Columbus and CincinnatiSource: Paul Wasneski, Public domain, via Wikimedia Commons

The forecast is in, and it seems the folks in Columbus, Cincinnati, Wilmington, and the surrounding areas might want to savor the near-normal temperatures today because change is on the way. The National Weather Service Wilmington is predicting a brief warmup accompanied by more humid conditions starting Tuesday and rolling into Wednesday, complete with scattered showers and storms.

Residents in central OH can expect afternoon highs in the mid-80s, while the Tri-State area should brace for around 90 degrees today. An eastward march of dry air will ensure dry conditions stick around through Tuesday morning. But don't let that fool you. With the influx of a more humid airmass by Tuesday night, the environment becomes more supportive for thunderstorm development, although the absence of a good kick upstairs might hinder widespread action.

For those looking to stargaze or enjoy a cool night, tonight’s lows should hit the lower 60s in central OH with clear skies. However, late Tuesday will mark an abrupt shift back to humid conditions, potentially giving way to locally heavy rainfall and isolated flooding concerns in areas especially near or west of I-71 into north-central KY, according to the National Weather Service forecast discussion. While Tuesday brings back the heat with highs approaching 90 degrees, storm chances remain up in the air.

Peeking further ahead into the week, the NWS outlook details a continued dance between passing systems and potential showers through midweek, followed by drier conditions again late in the workweek. A noteworthy mention in the long-term forecast is the interface between an approaching trough and Hurricane Erin, which could lead to a bit of a mix-up on Thursday. Despite these clouds on the horizon, don't reach for the raincoat just yet, because the signal for precipitation is weak, making the forecast lean dry. However, Sunday could bring a stark change, with a solid push of cooler and dry air, potentially leaving Sunday's highs in the northern region lounging in the mid to upper 70s.

As for the skies above, aviation forecasts indicate smooth sailing—or flying—to start the week. Aside from some possible morning clouds flirting with MVFR/VFR thresholds, most flyers out of central Ohio hubs should have clear paths ahead. Although potential for early Tuesday river valley fog at KLUK exists, the overall confidence is on the lower side, so pilots shouldn't sweat it too much.