Wilmington, OH – A sharp drop in temperature midweek could bring the first frost of the fall season to the Ohio Valley by Wednesday morning. After a stretch of sunny, unseasonably warm days for Columbus Day and Tuesday, residents should brace for a cold snap that will end the mild spell.
According to the National Weather Service in Wilmington, temperatures will hold in the low to mid-70s Monday and Tuesday before tumbling into the upper 30s by early Wednesday. Light winds and clear skies will set the stage for frost formation, especially in rural and low-lying areas across Clinton, Greene, and Fayette counties.
Gardeners and homeowners are urged to protect sensitive plants and outdoor decorations as the chill settles in. Commuters along I-71 and U.S. 68 should anticipate colder starts to the day, with frost possible on windshields during the morning drive. While the air remains dry, this rapid temperature swing marks a clear signal that fall is tightening its grip on southwest Ohio.
The National Weather Service notes that this frost threat will ease slightly by Thursday, but cooler days will linger into late week. Sunny afternoons will continue, keeping conditions favorable for pumpkin patches, harvest festivals, and park leaf viewing, though a light jacket will be needed through the mornings.
Five-Day Forecast for Wilmington, OH:
Mon: 74/46 – Sunny; mild and pleasant holiday weather.
Tue: 75/49 – Warm, sunny; light north wind.
Wed: 65/38 – Mostly sunny; early frost possible across the Ohio Valley.
Thu: 64/39 – Clear and crisp; chilly morning start.
Fri: 68/40 – Bright and calm; ideal for fall outdoor plans.
