Yes

you do need a jacket based on the weather in Zion, IL 60099, USA 1 second ago

Why? Because it's cool. Pleasantly cool, but cool and it's fairly windy outside!
51°F11°C & Cloudy

Wind is 14 mph22 km/h from the Southeast, gusting to 24 mph38 km/h
November 13
2pm52°F11°C14 mph22 km/h SoutheastCloudy
3pm52°F11°C13 mph21 km/h SoutheastCloudy
4pm53°F12°C13 mph21 km/h SoutheastCloudy
5pm52°F11°C12 mph20 km/h SoutheastCloudy
6pm51°F11°C12 mph19 km/h SoutheastCloudy
7pm51°F11°C12 mph19 km/h SoutheastCloudy
8pm50°F10°C14 mph22 km/h SoutheastRain
9pm49°F10°C12 mph20 km/h SoutheastRain
10pm50°F10°C12 mph19 km/h SoutheastRain
11pm50°F10°C11 mph18 km/h SoutheastRain
November 14
12am51°F11°C12 mph19 km/h SoutheastRain
1am51°F11°C12 mph19 km/h SoutheastRain
DateLowHighWindDayNight
November 1342°F6°C53°F12°C13 mph20 km/h from SoutheastRainRain
November 1446°F8°C55°F13°C10 mph16 km/h from NorthwestCloudyMostly Cloudy
November 1543°F6°C55°F13°C5 mph8 km/h from NorthMostly CloudyMostly Cloudy
November 1644°F7°C56°F13°C9 mph15 km/h from SouthMostly CloudyCloudy
November 1744°F7°C57°F14°C11 mph18 km/h from SouthwestCloudyPartly Cloudy
November 1840°F4°C54°F12°C7 mph11 km/h from EastMostly CloudyThunderstorms
November 1948°F9°C56°F13°C14 mph23 km/h from SoutheastDrizzleCloudy

Yes

Low of 46°F8°C, High of 55°F13°C
Wind: 10 mph16 km/h
Precipitation: 57% rain

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