Yes

you do need a jacket based on the weather in Princeton, NJ 08544, USA 53 seconds ago

Why? Because the air feels like the cozy middle ground between summer and winter!
58°F15°C & Mostly Cloudy

Wind is 6 mph9 km/h from the Northwest, gusting to 12 mph19 km/h
August 27
4am58°F14°C6 mph9 km/h NorthwestMostly Cloudy
5am57°F14°C5 mph9 km/h NorthwestCloudy
6am57°F14°C6 mph9 km/h NorthwestClear
7am57°F14°C6 mph10 km/h NorthwestClear
8am60°F15°C7 mph12 km/h NorthwestClear
9am63°F17°C8 mph13 km/h NorthwestClear
10am66°F19°C9 mph14 km/h NorthwestClear
11am68°F20°C9 mph14 km/h NorthwestClear
12pm70°F21°C9 mph15 km/h NorthwestMostly Clear
1pm72°F22°C10 mph15 km/h NorthwestMostly Clear
2pm73°F23°C10 mph16 km/h NorthwestMostly Clear
3pm74°F23°C10 mph16 km/h NorthwestMostly Clear
DateLowHighWindDayNight
August 2756°F13°C74°F23°C9 mph14 km/h from NorthwestMostly ClearMostly Clear
August 2854°F12°C77°F25°C6 mph10 km/h from SouthwestMostly CloudyPartly Cloudy
August 2962°F16°C76°F25°C8 mph13 km/h from WestPartly CloudyMostly Clear
August 3055°F13°C74°F23°C6 mph10 km/h from NorthwestClearClear
August 3154°F12°C75°F24°C5 mph8 km/h from NorthMostly ClearMostly Clear
September 157°F14°C76°F24°C7 mph12 km/h from NortheastPartly CloudyMostly Cloudy
September 258°F14°C73°F23°C8 mph14 km/h from NorthRainClear

Yes

Low of 54°F12°C, High of 77°F25°C
Wind: 6 mph10 km/h
Precipitation: None

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