Sun. Oct 18th, 2026

DAYTON — Ohioans will enjoy a mild start to the week before a cold front pushes through and brings cooler air by midweek.

Skies will clear in a matter of hours overnight, with temperatures dropping into the lower 40s and possibly upper 30s by morning, according to Dayton-area forecasters. Highs rebound into the middle 60s for Monday and Tuesday — pleasant for late September, and a welcome stretch for anyone with outdoor plans early in the week.

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A weak front arrives Tuesday with more cloud cover and perhaps a few showers. It will not be a washout, but the front will usher in noticeably cooler air: temperatures behind it will fall into the lower 40s by Wednesday morning, with highs only reaching near 60 for the day.

The pattern gives Ohio a classic early-autumn week — warm afternoons to start, then a reminder that fall is settling in by midweek. Residents across the state should keep a light jacket handy as mornings turn chilly and afternoon highs run below average through the middle of the week. Overnight lows in traditionally colder spots could flirt with the upper 30s, so gardeners may want to keep an eye on tender plants.

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