Yes

you do need a jacket based on the weather in Wilmington, OH 45177, USA 1 second ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
53°F11°C & Clear

Wind is 4 mph7 km/h from the East, gusting to 7 mph12 km/h
September 12
7am52°F11°C4 mph7 km/h EastClear
8am53°F12°C4 mph7 km/h EastClear
9am59°F15°C4 mph7 km/h EastClear
10am65°F18°C4 mph6 km/h EastClear
11am71°F22°C3 mph4 km/h NortheastClear
12pm75°F24°C2 mph4 km/h NortheastClear
1pm78°F26°C3 mph5 km/h NortheastClear
2pm80°F27°C3 mph5 km/h NortheastClear
3pm81°F27°C3 mph5 km/h NortheastClear
4pm81°F27°C3 mph4 km/h NorthClear
5pm81°F27°C3 mph4 km/h NorthClear
6pm80°F27°C3 mph5 km/h NorthClear
DateLowHighWindDayNight
September 1252°F11°C81°F27°C3 mph5 km/h from NortheastClearClear
September 1353°F12°C82°F28°C3 mph6 km/h from WestPartly CloudyMostly Cloudy
September 1461°F16°C84°F29°C3 mph6 km/h from EastMostly ClearClear
September 1560°F16°C86°F30°C4 mph7 km/h from EastMostly ClearPartly Cloudy
September 1660°F16°C84°F29°C5 mph8 km/h from EastPartly CloudyPartly Cloudy
September 1761°F16°C80°F27°C5 mph9 km/h from EastMostly CloudyPartly Cloudy
September 1862°F16°C81°F27°C3 mph5 km/h from SouthMostly ClearMostly Clear

Yes

Low of 54°F12°C, High of 82°F28°C
Wind: 3 mph6 km/h
Precipitation: None

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