No
Why? Because you should be inside at home! #StayHome
But if you absolutely had to go out to get groceries, medication or other essential travel, Yes, you do need a jacket.
Why? Because it's pretty chilly.
Based on the weather in (Williamsburg), New York, United States as of May 25, 2020 9:25am local time.
Now
Overcast
Temp: 58°F15°C
Wind: 6 MPH9 KPH
Precipitation: None
Temp: 58°F15°C
Wind: 6 MPH9 KPH
Precipitation: None
Today
Next 2 hours: Yes
Next 4 hours: Yes
Next 8 hours: Yes
Tomorrow
No
Partly cloudy throughout the day.Low of 60°F16°C, High of 73°F23°C
Wind: 5 MPH8 KPH
Precipitation: 8% rain