No

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

80°F27°C & Mostly Cloudy

Wind is 6 mph9 km/h from the Southeast, gusting to 13 mph21 km/h
July 6
9pm79°F26°C5 mph8 km/h SoutheastClear
10pm77°F25°C5 mph8 km/h SoutheastMostly Clear
11pm76°F25°C3 mph5 km/h SoutheastMostly Clear
July 7
12am76°F24°C3 mph5 km/h SoutheastMostly Clear
1am75°F24°C4 mph6 km/h SoutheastMostly Clear
2am74°F23°C4 mph7 km/h SoutheastCloudy
3am74°F23°C4 mph6 km/h SoutheastMostly Cloudy
4am73°F23°C4 mph7 km/h SoutheastMostly Cloudy
5am73°F23°C4 mph6 km/h SoutheastCloudy
6am73°F23°C4 mph6 km/h SoutheastDrizzle
7am74°F24°C4 mph6 km/h SouthCloudy
8am76°F25°C4 mph7 km/h SouthCloudy
DateLowHighWindDayNight
July 664°F18°C88°F31°C3 mph5 km/h from SouthMostly ClearPartly Cloudy
July 773°F23°C85°F30°C5 mph8 km/h from SoutheastDrizzleDrizzle
July 874°F23°C90°F32°C6 mph10 km/h from WestThunderstormsThunderstorms
July 972°F22°C87°F31°C4 mph7 km/h from SouthwestRainRain
July 1071°F22°C80°F27°C5 mph8 km/h from EastRainRain
July 1169°F21°C81°F27°C4 mph6 km/h from NortheastDrizzleDrizzle
July 1269°F21°C82°F28°C4 mph7 km/h from SoutheastRainPartly Cloudy

No

Low of 73°F23°C, High of 85°F30°C
Wind: 5 mph8 km/h
Precipitation: 53% rain

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