No

you don't need a jacket based on the weather in Washington, DC, USA 1 second ago

70°F21°C & Cloudy

Wind is 4 mph6 km/h from the Northeast, gusting to 7 mph11 km/h
August 31
12pm73°F23°C4 mph7 km/h NortheastMostly Cloudy
1pm74°F23°C6 mph9 km/h NortheastMostly Cloudy
2pm76°F24°C6 mph10 km/h NortheastMostly Cloudy
3pm76°F25°C7 mph11 km/h NortheastMostly Cloudy
4pm77°F25°C7 mph11 km/h NortheastMostly Cloudy
5pm76°F24°C7 mph11 km/h NortheastMostly Cloudy
6pm74°F24°C6 mph10 km/h NortheastMostly Cloudy
7pm73°F23°C6 mph9 km/h EastPartly Cloudy
8pm69°F21°C4 mph7 km/h EastPartly Cloudy
9pm67°F19°C3 mph5 km/h EastMostly Cloudy
10pm65°F18°C2 mph3 km/h NortheastMostly Cloudy
11pm63°F17°C2 mph4 km/h NorthPartly Cloudy
DateLowHighWindDayNight
August 3155°F13°C77°F25°C5 mph8 km/h from NortheastMostly CloudyMostly Clear
September 156°F13°C78°F26°C7 mph11 km/h from NortheastMostly ClearClear
September 258°F15°C77°F25°C5 mph8 km/h from NortheastMostly ClearPartly Cloudy
September 360°F15°C81°F27°C4 mph7 km/h from SouthPartly CloudyPartly Cloudy
September 464°F18°C82°F28°C9 mph15 km/h from SouthPartly CloudyRain
September 568°F20°C79°F26°C7 mph11 km/h from SouthwestDrizzleMostly Clear
September 665°F18°C82°F28°C6 mph9 km/h from SouthwestMostly ClearPartly Cloudy

Yes

Low of 56°F14°C, High of 78°F26°C
Wind: 7 mph11 km/h
Precipitation: None

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