Wilmington, Ohio – Heat is building fast across southern Ohio this weekend, and by Sunday, Wilmington could feel like it’s near 100 degrees.
According to the National Weather Service in Wilmington, high pressure will keep skies mostly clear and temperatures hot through Sunday, with daytime highs hitting 92°F both Saturday and Sunday. Calm winds and full sun will intensify heat index values, especially on paved corridors like U.S. Route 68 and OH-134. Hydration and limited outdoor exposure are strongly advised.
Saturday brings mostly sunny skies with light winds out of the south by afternoon. Sunday remains dry, but the combination of 92°F heat and moderate humidity could drive heat index values dangerously close to triple digits.
By Monday, the first real storm chances return, with scattered thunderstorms possible after 2 p.m. Temperatures will hover in the high 80s, but humidity and cloud cover may offer slight relief. Still, expect muggy and uncomfortable conditions to persist.
Five-Day Outlook: Wilmington, Ohio
- Saturday (July 5): Sunny, high 92°F. Calm winds.
- Sunday (July 6): Sunny, high 92°F. Heat index near 100.
- Monday (July 7): Chance of storms after 2 p.m., high 88°F.
- Tuesday (July 8): Partly sunny, storms possible late, high 87°F.
- Wednesday (July 9): Scattered storms, high 86°F.


