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, No, you don't need a jacket.

Based on the weather in Acton, MA, USA as of June 1, 2020 2:24pm local time.

Now

Partly Cloudy
Temp: 63°F17°C
Wind: 8 MPH14 KPH
Precipitation: None

Today

Next 2 hours: No

Next 4 hours: No

Next 8 hours: Yes

Tomorrow

Yes

Mostly cloudy throughout the day.
Low of 45°F7°C, High of 73°F23°C
Wind: 4 MPH6 KPH
Precipitation: 17% rain