Yes

you do need a jacket based on the weather in West Windsor Township, NJ, USA 1 second ago

Why? Because the cold's there, but it's just a reminder, not an invasion!
48°F9°C & Clear

Wind is 5 mph8 km/h from the West, gusting to 13 mph21 km/h
October 25
1am47°F8°C5 mph8 km/h NorthwestClear
2am46°F8°C5 mph8 km/h NorthwestClear
3am44°F7°C5 mph7 km/h NorthwestClear
4am43°F6°C5 mph8 km/h NorthwestClear
5am42°F6°C5 mph7 km/h NorthwestClear
6am42°F5°C4 mph7 km/h NorthwestClear
7am41°F5°C4 mph7 km/h NorthwestClear
8am40°F4°C4 mph7 km/h NorthwestClear
9am39°F4°C4 mph7 km/h NorthwestClear
10am39°F4°C4 mph7 km/h NorthwestClear
11am38°F3°C4 mph6 km/h NorthwestClear
12pm39°F4°C4 mph7 km/h NorthwestClear
DateLowHighWindDayNight
October 2438°F3°C59°F15°C3 mph5 km/h from WestMostly ClearClear
October 2538°F3°C59°F15°C5 mph7 km/h from NorthwestPartly CloudyMostly Cloudy
October 2640°F4°C58°F15°C5 mph8 km/h from NorthPartly CloudyPartly Cloudy
October 2738°F4°C55°F13°C7 mph11 km/h from NortheastMostly ClearPartly Cloudy
October 2839°F4°C56°F14°C10 mph16 km/h from NortheastPartly CloudyPartly Cloudy
October 2941°F5°C57°F14°C8 mph13 km/h from NortheastPartly CloudyRain
October 3046°F8°C61°F16°C11 mph17 km/h from NortheastRainRain

Yes

Low of 38°F4°C, High of 59°F15°C
Wind: 5 mph7 km/h
Precipitation: None

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