No

you don't need a jacket based on the weather in Yorkville, IL, USA 1 second ago

81°F27°C & Clear

Wind is 3 mph5 km/h from the South, gusting to 6 mph10 km/h
September 18
2pm83°F28°C3 mph5 km/h SouthwestClear
3pm85°F29°C2 mph3 km/h NortheastClear
4pm85°F30°C3 mph4 km/h NortheastClear
5pm85°F30°C3 mph5 km/h NortheastClear
6pm85°F29°C3 mph5 km/h EastClear
7pm82°F28°C4 mph6 km/h EastClear
8pm77°F25°C5 mph8 km/h EastClear
9pm73°F23°C6 mph10 km/h EastClear
10pm71°F22°C7 mph10 km/h EastClear
11pm69°F21°C6 mph10 km/h EastClear
September 19
12am68°F20°C6 mph10 km/h EastClear
1am66°F19°C6 mph10 km/h EastClear
DateLowHighWindDayNight
September 1858°F14°C85°F30°C3 mph4 km/h from EastClearMostly Clear
September 1962°F16°C83°F29°C5 mph8 km/h from SouthMostly CloudyRain
September 2063°F17°C79°F26°C6 mph9 km/h from SouthThunderstormsRain
September 2162°F17°C77°F25°C7 mph12 km/h from SouthwestDrizzleRain
September 2263°F17°C77°F25°C6 mph9 km/h from SouthwestDrizzleDrizzle
September 2362°F17°C75°F24°C6 mph9 km/h from EastDrizzleDrizzle
September 2463°F17°C75°F24°C9 mph14 km/h from NortheastDrizzleMostly Cloudy

No

Low of 62°F17°C, High of 83°F29°C
Wind: 5 mph8 km/h
Precipitation: 12% rain

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