Yes

you do need a jacket based on the weather in Airmont, NY, USA 1 second ago

Why? Because it's pretty chilly.
53°F11°C & Clear

Wind is 6 mph10 km/h from the NW, gusting to 18 mph29 km/h
September 8
4am52°F11°C6 mph10 km/h NWClear
5am51°F11°C7 mph11 km/h NWClear
6am50°F10°C6 mph10 km/h NWClear
7am50°F10°C6 mph10 km/h NWClear
8am52°F11°C7 mph11 km/h NWClear
9am54°F12°C9 mph15 km/h NWClear
10am57°F14°C9 mph15 km/h NWClear
11am59°F15°C9 mph14 km/h NWMostly Clear
12pm62°F17°C9 mph15 km/h NWMostly Clear
1pm64°F18°C9 mph15 km/h NWMostly Clear
2pm66°F19°C9 mph15 km/h WMostly Clear
3pm67°F20°C10 mph16 km/h WMostly Clear
DateLowHighWindDayNight
September 850°F10°C68°F20°C8 mph14 km/h from NWMostly ClearClear
September 949°F9°C73°F23°C6 mph10 km/h from WMostly ClearMostly Clear
September 1054°F12°C76°F25°C6 mph9 km/h from NWClearMostly Clear
September 1154°F12°C80°F26°C3 mph4 km/h from SWPartly CloudyMostly Clear
September 1258°F15°C83°F29°C2 mph4 km/h from SWMostly ClearMostly Clear
September 1359°F15°C84°F29°C2 mph3 km/h from SWMostly ClearPartly Cloudy
September 1461°F16°C84°F29°C2 mph3 km/h from SEPartly CloudyPartly Cloudy

Yes

Low of 48°F9°C, High of 73°F23°C
Wind: 6 mph10 km/h
Precipitation: None

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