Yes

you do need a jacket based on the weather in 814 Yarrow St, Bryn Mawr, PA 19010, USA 1 second ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it and it's really really huffing out there!
57°F14°C & Cloudy

Wind is 14 mph23 km/h from the Northeast, gusting to 35 mph57 km/h
October 13
3am57°F14°C15 mph24 km/h NortheastCloudy
4am57°F14°C14 mph23 km/h NortheastDrizzle
5am57°F14°C15 mph24 km/h NortheastWindy
6am57°F14°C15 mph23 km/h NortheastDrizzle
7am57°F14°C15 mph24 km/h NortheastThunderstorms
8am57°F14°C16 mph25 km/h NortheastDrizzle
9am57°F14°C15 mph25 km/h NortheastDrizzle
10am56°F14°C16 mph25 km/h NorthDrizzle
11am56°F13°C15 mph25 km/h NorthDrizzle
12pm56°F13°C15 mph24 km/h NorthDrizzle
1pm56°F13°C15 mph24 km/h NortheastDrizzle
2pm56°F13°C15 mph24 km/h NorthDrizzle
DateLowHighWindDayNight
October 1256°F13°C61°F16°C6 mph10 km/h from NortheastDrizzleThunderstorms
October 1356°F13°C60°F15°C14 mph23 km/h from NorthDrizzleDrizzle
October 1455°F13°C67°F19°C10 mph16 km/h from NorthCloudyPartly Cloudy
October 1550°F10°C66°F19°C10 mph16 km/h from NorthwestMostly ClearMostly Clear
October 1644°F7°C60°F16°C11 mph18 km/h from NorthwestMostly ClearMostly Clear
October 1740°F5°C62°F17°C6 mph10 km/h from NorthwestMostly ClearMostly Clear
October 1846°F8°C69°F21°C5 mph8 km/h from SouthwestPartly CloudyPartly Cloudy

Yes

Low of 55°F13°C, High of 60°F16°C
Wind: 14 mph23 km/h
Precipitation: 90% rain

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