Yes

you do need a jacket based on the weather in Darby, PA, USA 11 seconds ago

Why? Because it's not very warm out!
53°F12°C & Cloudy

Wind is 2 mph4 km/h from the South, gusting to 7 mph11 km/h
November 3
1am51°F10°C3 mph5 km/h SouthMostly Cloudy
2am49°F10°C2 mph3 km/h SouthMostly Cloudy
3am48°F9°C2 mph4 km/h SouthwestPartly Cloudy
4am47°F9°C2 mph4 km/h SouthwestMostly Cloudy
5am47°F8°C2 mph4 km/h NorthPartly Cloudy
6am46°F8°C3 mph4 km/h NorthPartly Cloudy
7am46°F8°C2 mph3 km/h EastMostly Cloudy
8am45°F7°C2 mph4 km/h NortheastMostly Cloudy
9am45°F7°C3 mph4 km/h NortheastCloudy
10am46°F8°C2 mph4 km/h NortheastCloudy
11am46°F8°C3 mph4 km/h NortheastCloudy
12pm47°F8°C3 mph4 km/h NortheastCloudy
DateLowHighWindDayNight
November 240°F4°C64°F18°C2 mph3 km/h from SoutheastMostly ClearMostly Cloudy
November 345°F7°C60°F15°C4 mph6 km/h from SouthwestDrizzleClear
November 444°F7°C58°F15°C10 mph17 km/h from WestClearMostly Clear
November 541°F5°C64°F18°C10 mph16 km/h from SouthwestMostly ClearMostly Clear
November 640°F5°C56°F13°C10 mph16 km/h from NorthwestMostly ClearMostly Clear
November 737°F3°C59°F15°C10 mph16 km/h from SouthMostly CloudyDrizzle
November 847°F8°C62°F17°C9 mph15 km/h from WestPartly CloudyPartly Cloudy

Yes

Low of 46°F8°C, High of 60°F16°C
Wind: 4 mph6 km/h
Precipitation: 32% rain

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