Yes

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

Why? Because it's not very warm out!
51°F11°C & Mostly Cloudy

Wind is 6 mph9 km/h from the West, gusting to 16 mph25 km/h
November 8
7am51°F11°C6 mph10 km/h WestMostly Cloudy
8am49°F10°C4 mph7 km/h WestMostly Clear
9am47°F9°C3 mph5 km/h WestClear
10am46°F8°C3 mph4 km/h SouthwestMostly Clear
11am45°F7°C3 mph4 km/h SouthwestMostly Clear
12pm44°F7°C2 mph3 km/h SouthPartly Cloudy
1pm46°F8°C2 mph3 km/h SoutheastPartly Cloudy
2pm49°F10°C1 mph2 km/h SouthPartly Cloudy
3pm52°F11°C2 mph3 km/h SouthPartly Cloudy
4pm54°F12°C4 mph7 km/h SouthwestPartly Cloudy
5pm56°F13°C6 mph10 km/h SouthwestPartly Cloudy
6pm58°F14°C8 mph12 km/h SouthwestMostly Cloudy
DateLowHighWindDayNight
November 844°F7°C59°F15°C5 mph7 km/h from SouthwestMostly CloudyMostly Cloudy
November 937°F3°C54°F12°C8 mph13 km/h from SouthwestRainDrizzle
November 1028°F-2°C38°F3°C8 mph13 km/h from WestMostly CloudyMostly Cloudy
November 1125°F-4°C38°F3°C11 mph18 km/h from WestPartly CloudyMostly Cloudy
November 1234°F1°C47°F8°C12 mph20 km/h from SouthwestMostly CloudyMostly Cloudy
November 1336°F2°C46°F8°C11 mph17 km/h from WestMostly CloudyPartly Cloudy
November 1433°F0°C47°F8°C7 mph11 km/h from WestPartly CloudyMostly Clear

Yes

Low of 37°F3°C, High of 55°F13°C
Wind: 8 mph13 km/h
Precipitation: 64% rain

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