Yes

you do need a jacket based on the weather in Randallstown, MD, USA 1 second ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
57°F14°C & Mostly Clear

Wind is 5 mph8 km/h from the Northwest, gusting to 12 mph19 km/h
August 27
4am56°F14°C5 mph8 km/h NorthwestClear
5am56°F13°C5 mph9 km/h NorthwestClear
6am55°F13°C6 mph9 km/h NorthwestClear
7am55°F13°C6 mph10 km/h NorthwestClear
8am58°F14°C7 mph10 km/h NorthwestClear
9am62°F16°C8 mph13 km/h NorthwestClear
10am65°F18°C9 mph15 km/h NorthwestClear
11am68°F20°C9 mph14 km/h NorthwestClear
12pm70°F21°C9 mph14 km/h NorthwestMostly Clear
1pm72°F22°C9 mph15 km/h NorthwestMostly Clear
2pm73°F23°C10 mph15 km/h NorthwestPartly Cloudy
3pm73°F23°C9 mph15 km/h NorthwestPartly Cloudy
DateLowHighWindDayNight
August 2755°F13°C73°F23°C8 mph13 km/h from NorthwestMostly ClearPartly Cloudy
August 2855°F13°C76°F24°C5 mph8 km/h from SouthwestMostly CloudyMostly Cloudy
August 2960°F16°C76°F25°C8 mph13 km/h from WestMostly ClearMostly Clear
August 3055°F13°C73°F23°C6 mph9 km/h from NorthClearClear
August 3154°F12°C75°F24°C5 mph9 km/h from NortheastMostly ClearPartly Cloudy
September 157°F14°C75°F24°C6 mph9 km/h from NortheastMostly CloudyPartly Cloudy
September 258°F15°C76°F24°C6 mph10 km/h from NortheastMostly ClearMostly Clear

Yes

Low of 55°F13°C, High of 76°F25°C
Wind: 5 mph8 km/h
Precipitation: None

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