Yes

you do need a jacket based on the weather in Berwyn, IL 60402, USA 1 second ago

Why? Because the air feels like the cozy middle ground between summer and winter!
55°F13°C & Mostly Cloudy

Wind is 4 mph7 km/h from the Northeast, gusting to 8 mph13 km/h
May 5
9pm54°F12°C4 mph7 km/h NortheastMostly Cloudy
10pm53°F11°C3 mph5 km/h NortheastCloudy
11pm51°F11°C3 mph5 km/h NortheastCloudy
May 6
12am50°F10°C3 mph5 km/h NorthCloudy
1am49°F9°C3 mph5 km/h NorthMostly Cloudy
2am48°F9°C3 mph4 km/h NorthMostly Cloudy
3am47°F8°C3 mph4 km/h NorthwestCloudy
4am48°F9°C3 mph6 km/h NorthwestCloudy
5am48°F9°C4 mph6 km/h WestCloudy
6am48°F9°C4 mph7 km/h WestCloudy
7am48°F9°C5 mph8 km/h WestCloudy
8am49°F10°C5 mph9 km/h WestMostly Cloudy
DateLowHighWindDayNight
May 547°F8°C61°F16°C4 mph6 km/h from NortheastMostly CloudyMostly Cloudy
May 647°F8°C73°F23°C7 mph12 km/h from NorthwestPartly CloudyMostly Clear
May 748°F9°C68°F20°C9 mph14 km/h from NorthMostly CloudyMostly Cloudy
May 845°F7°C59°F15°C12 mph19 km/h from NortheastClearMostly Clear
May 942°F6°C65°F18°C5 mph8 km/h from NortheastPartly CloudyMostly Clear
May 1047°F8°C74°F23°C6 mph10 km/h from NorthClearMostly Clear
May 1152°F11°C76°F24°C5 mph8 km/h from EastMostly ClearClear

Yes

Low of 47°F9°C, High of 73°F23°C
Wind: 7 mph12 km/h
Precipitation: None

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