Yes

you do need a jacket based on the weather in Alexandria, VA, USA 1 second ago

Why? Because it's pretty chilly!
54°F12°C & Clear

Wind is 5 mph8 km/h from the Northwest, gusting to 12 mph20 km/h
October 24
12am53°F12°C5 mph8 km/h NorthwestClear
1am51°F10°C5 mph8 km/h NorthwestClear
2am49°F10°C5 mph8 km/h WestClear
3am48°F9°C4 mph6 km/h NorthwestClear
4am46°F8°C3 mph5 km/h NorthwestClear
5am45°F7°C3 mph6 km/h NorthClear
6am44°F7°C3 mph5 km/h NorthClear
7am44°F7°C3 mph5 km/h WestClear
8am43°F6°C4 mph6 km/h WestClear
9am42°F6°C4 mph6 km/h WestClear
10am42°F5°C4 mph6 km/h WestClear
11am41°F5°C4 mph6 km/h WestClear
DateLowHighWindDayNight
October 2346°F8°C64°F18°C5 mph8 km/h from NorthwestClearClear
October 2441°F5°C59°F15°C7 mph12 km/h from NorthwestPartly CloudyMostly Clear
October 2539°F4°C60°F16°C4 mph7 km/h from NorthwestMostly CloudyMostly Cloudy
October 2643°F6°C59°F15°C3 mph5 km/h from EastMostly CloudyMostly Cloudy
October 2745°F7°C57°F14°C6 mph10 km/h from NortheastCloudyMostly Cloudy
October 2845°F7°C55°F13°C9 mph15 km/h from NortheastMostly CloudyRain
October 2946°F8°C55°F13°C8 mph13 km/h from NorthRainRain

Yes

Low of 41°F5°C, High of 59°F15°C
Wind: 7 mph12 km/h
Precipitation: None

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