Yes

you do need a jacket based on the weather in Chicago, IL, USA 24 seconds ago

Why? Because it's pretty chilly and it's fairly windy outside!
52°F11°C & Partly Cloudy

Wind is 14 mph22 km/h from the North, gusting to 20 mph32 km/h
October 30
5pm53°F12°C14 mph22 km/h NorthMostly Clear
6pm54°F12°C14 mph22 km/h NorthClear
7pm54°F12°C14 mph22 km/h NorthClear
8pm54°F12°C13 mph21 km/h NorthClear
9pm54°F12°C13 mph21 km/h NorthMostly Clear
10pm53°F12°C12 mph19 km/h NorthMostly Clear
11pm51°F11°C8 mph12 km/h NorthPartly Cloudy
October 31
12am50°F10°C6 mph9 km/h NorthPartly Cloudy
1am48°F9°C5 mph8 km/h NorthwestMostly Cloudy
2am47°F8°C6 mph9 km/h NorthwestMostly Cloudy
3am45°F7°C6 mph10 km/h NorthwestPartly Cloudy
4am44°F7°C6 mph10 km/h NorthwestMostly Cloudy
DateLowHighWindDayNight
October 3043°F6°C54°F12°C12 mph20 km/h from NorthMostly ClearMostly Cloudy
October 3141°F5°C53°F12°C9 mph14 km/h from WestPartly CloudyPartly Cloudy
November 138°F4°C50°F10°C7 mph12 km/h from NorthwestPartly CloudyPartly Cloudy
November 236°F2°C52°F11°C8 mph13 km/h from SouthwestPartly CloudyPartly Cloudy
November 342°F5°C59°F15°C11 mph17 km/h from WestMostly ClearClear
November 439°F4°C60°F15°C6 mph9 km/h from SouthwestPartly CloudyMostly Cloudy
November 545°F7°C60°F16°C11 mph17 km/h from SouthwestMostly CloudyMostly Clear

Yes

Low of 41°F5°C, High of 53°F12°C
Wind: 9 mph14 km/h
Precipitation: None

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