Yes

you do need a jacket based on the weather in Hallam, PA 17406, USA 1 second ago

Why? Because it's not very warm out!
59°F15°C & Cloudy

Wind is 7 mph12 km/h from the Southeast, gusting to 17 mph27 km/h
November 9
4pm59°F15°C8 mph13 km/h SoutheastCloudy
5pm61°F16°C10 mph16 km/h SoutheastMostly Cloudy
6pm63°F17°C9 mph15 km/h SouthCloudy
7pm65°F18°C9 mph15 km/h SouthCloudy
8pm64°F18°C8 mph13 km/h SouthCloudy
9pm62°F17°C7 mph11 km/h SouthMostly Cloudy
10pm60°F15°C5 mph8 km/h SouthCloudy
11pm59°F15°C4 mph7 km/h SouthMostly Cloudy
November 10
12am57°F14°C5 mph8 km/h SouthwestRain
1am56°F14°C5 mph8 km/h WestMostly Cloudy
2am55°F13°C6 mph10 km/h WestMostly Cloudy
3am54°F12°C7 mph12 km/h WestCloudy
DateLowHighWindDayNight
November 950°F10°C65°F18°C6 mph10 km/h from SouthRainRain
November 1030°F-1°C51°F10°C11 mph18 km/h from NorthwestMostly CloudyMostly Clear
November 1128°F-2°C42°F6°C15 mph24 km/h from WestWindyMostly Cloudy
November 1234°F1°C53°F12°C12 mph19 km/h from WestPartly CloudyPartly Cloudy
November 1336°F2°C51°F11°C11 mph18 km/h from WestMostly ClearPartly Cloudy
November 1435°F2°C53°F12°C9 mph14 km/h from WestMostly CloudyMostly Clear
November 1531°F-0°C46°F8°C7 mph11 km/h from NorthwestMostly ClearPartly Cloudy

Yes

Low of 30°F-1°C, High of 51°F11°C
Wind: 11 mph18 km/h
Precipitation: None

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