Yes

you do need a jacket based on the weather in Chicago, IL, USA 4 minutes ago

Why? Because it's quite chilly!
41°F5°C & Mostly Cloudy

Wind is 6 mph10 km/h from the West, gusting to 12 mph19 km/h
November 2
12pm42°F5°C6 mph9 km/h WestRain
1pm42°F5°C5 mph8 km/h WestPartly Cloudy
2pm43°F6°C5 mph9 km/h SouthwestMostly Clear
3pm46°F8°C5 mph9 km/h SouthwestMostly Clear
4pm48°F9°C6 mph10 km/h SouthwestMostly Clear
5pm51°F10°C8 mph13 km/h SouthwestMostly Clear
6pm52°F11°C9 mph15 km/h SouthwestMostly Clear
7pm53°F12°C10 mph16 km/h SouthwestMostly Clear
8pm53°F12°C11 mph17 km/h SouthwestPartly Cloudy
9pm53°F12°C11 mph17 km/h SouthwestPartly Cloudy
10pm52°F11°C10 mph17 km/h SouthwestPartly Cloudy
11pm50°F10°C10 mph15 km/h SouthwestPartly Cloudy
DateLowHighWindDayNight
November 241°F5°C53°F12°C9 mph14 km/h from SouthwestMostly ClearPartly Cloudy
November 342°F5°C58°F15°C10 mph17 km/h from WestClearPartly Cloudy
November 440°F4°C60°F15°C8 mph13 km/h from SouthPartly CloudyPartly Cloudy
November 545°F7°C59°F15°C9 mph15 km/h from NorthwestPartly CloudyPartly Cloudy
November 642°F6°C58°F14°C7 mph11 km/h from SouthCloudyRain
November 744°F6°C59°F15°C10 mph17 km/h from WestDrizzleMostly Cloudy
November 839°F4°C49°F10°C6 mph10 km/h from NorthMostly CloudyDrizzle

Yes

Low of 42°F6°C, High of 58°F15°C
Wind: 10 mph17 km/h
Precipitation: None

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