Yes

you do need a jacket based on the weather in Fort Mill, SC, USA 1 second ago

Why? Because sorry, it's too cool for just a hoodie!
57°F14°C & Mostly Clear

Wind is 6 mph9 km/h from the North, gusting to 12 mph20 km/h
September 10
6am57°F14°C6 mph9 km/h NorthMostly Clear
7am56°F14°C6 mph10 km/h NorthMostly Clear
8am59°F15°C6 mph10 km/h NorthMostly Clear
9am63°F17°C8 mph12 km/h NorthMostly Clear
10am68°F20°C8 mph13 km/h NorthMostly Clear
11am72°F22°C8 mph13 km/h NorthClear
12pm75°F24°C8 mph13 km/h NorthClear
1pm77°F25°C7 mph11 km/h NorthMostly Clear
2pm79°F26°C7 mph11 km/h NorthMostly Clear
3pm80°F27°C6 mph10 km/h NorthMostly Clear
4pm80°F27°C6 mph9 km/h NorthMostly Clear
5pm80°F27°C5 mph9 km/h NorthMostly Clear
DateLowHighWindDayNight
September 1056°F13°C80°F27°C7 mph11 km/h from NorthMostly ClearMostly Clear
September 1160°F16°C81°F27°C5 mph7 km/h from NorthMostly ClearMostly Clear
September 1261°F16°C81°F27°C5 mph8 km/h from NortheastMostly ClearClear
September 1361°F16°C81°F27°C5 mph8 km/h from NortheastMostly ClearClear
September 1459°F15°C84°F29°C3 mph5 km/h from WestClearMostly Clear
September 1565°F18°C88°F31°C4 mph6 km/h from NorthMostly ClearPartly Cloudy
September 1666°F19°C83°F28°C7 mph10 km/h from NortheastMostly ClearPartly Cloudy

No

Low of 60°F16°C, High of 82°F28°C
Wind: 5 mph7 km/h
Precipitation: None

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