Yes

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

Why? Because it's not very warm out!
57°F14°C & Partly Cloudy

Wind is 1 mph1 km/h from the South, gusting to 2 mph4 km/h
September 10
10am62°F17°C2 mph3 km/h SouthMostly Cloudy
11am68°F20°C2 mph3 km/h SouthMostly Cloudy
12pm72°F22°C1 mph2 km/h SouthMostly Cloudy
1pm74°F24°C1 mph2 km/h SouthwestPartly Cloudy
2pm76°F24°C2 mph3 km/h WestMostly Cloudy
3pm78°F25°C2 mph3 km/h WestMostly Clear
4pm78°F25°C2 mph3 km/h NorthwestMostly Clear
5pm77°F25°C2 mph4 km/h NorthwestClear
6pm76°F24°C2 mph4 km/h NorthwestClear
7pm73°F23°C2 mph4 km/h NorthwestMostly Clear
8pm68°F20°C2 mph4 km/h NorthwestMostly Clear
9pm64°F18°C2 mph3 km/h NorthMostly Clear
DateLowHighWindDayNight
September 1046°F8°C78°F25°C2 mph3 km/h from WestPartly CloudyMostly Clear
September 1152°F11°C79°F26°C3 mph4 km/h from NorthMostly ClearClear
September 1253°F12°C80°F27°C2 mph3 km/h from NortheastClearClear
September 1354°F12°C82°F28°C3 mph5 km/h from SouthwestPartly CloudyMostly Cloudy
September 1461°F16°C82°F28°C5 mph8 km/h from NorthwestPartly CloudyClear
September 1559°F15°C78°F25°C5 mph9 km/h from NortheastClearMostly Clear
September 1654°F12°C79°F26°C4 mph7 km/h from NortheastMostly ClearMostly Clear

Yes

Low of 52°F11°C, High of 79°F26°C
Wind: 3 mph4 km/h
Precipitation: None

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