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 Birmingham, UK as of June 1, 2020 8:17pm local time.

Now

Mostly Cloudy
Temp: 70°F21°C
Wind: 8 MPH13 KPH
Precipitation: None

Today

Next 2 hours: No

Next 4 hours: No

Next 8 hours: Yes

Tomorrow

Yes

Partly cloudy throughout the day.
Low of 50°F10°C, High of 76°F25°C
Wind: 5 MPH8 KPH
Precipitation: None