Yes

you do need a jacket based on the weather in Washington, DC, USA 3 minutes ago

Why? Because you're not freezing, but you’ll definitely start complaining if it lasts much longer and it's windy enough to give you a brand new hairdo!
50°F10°C & Mostly Cloudy

Wind is 9 mph14 km/h from the Northeast, gusting to 23 mph37 km/h
October 29
3am50°F10°C9 mph14 km/h NortheastCloudy
4am50°F10°C8 mph13 km/h NortheastCloudy
5am49°F10°C9 mph14 km/h NortheastCloudy
6am49°F9°C8 mph13 km/h NortheastMostly Cloudy
7am48°F9°C8 mph13 km/h NortheastMostly Cloudy
8am46°F8°C9 mph15 km/h NortheastMostly Cloudy
9am45°F7°C9 mph14 km/h NortheastMostly Cloudy
10am44°F7°C8 mph13 km/h NortheastMostly Cloudy
11am45°F7°C7 mph11 km/h NortheastMostly Cloudy
12pm45°F7°C7 mph11 km/h NortheastMostly Cloudy
1pm47°F8°C8 mph13 km/h NortheastMostly Cloudy
2pm50°F10°C8 mph13 km/h NortheastCloudy
DateLowHighWindDayNight
October 2844°F7°C56°F13°C6 mph10 km/h from NortheastPartly CloudyMostly Cloudy
October 2944°F7°C58°F14°C9 mph14 km/h from NortheastDrizzleHeavy Rain
October 3051°F11°C68°F20°C9 mph15 km/h from SouthThunderstormsMostly Clear
October 3147°F8°C58°F15°C14 mph23 km/h from WestMostly ClearMostly Clear
November 144°F6°C57°F14°C9 mph14 km/h from WestMostly ClearPartly Cloudy
November 241°F5°C57°F14°C4 mph6 km/h from WestPartly CloudyMostly Clear
November 341°F5°C62°F17°C8 mph12 km/h from SouthwestPartly CloudyMostly Clear

Yes

Low of 45°F7°C, High of 58°F15°C
Wind: 9 mph14 km/h
Precipitation: 42% rain

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