Yes

you do need a jacket based on the weather in Sioux City, IA 51105, USA 1 second ago

Why? Because it's quite chilly!
44°F7°C & Mostly Cloudy

Wind is 5 mph8 km/h from the Southeast, gusting to 10 mph16 km/h
November 4
6am44°F7°C5 mph8 km/h SoutheastMostly Cloudy
7am43°F6°C5 mph8 km/h SoutheastMostly Cloudy
8am41°F5°C5 mph8 km/h SoutheastMostly Clear
9am40°F4°C6 mph10 km/h SoutheastMostly Clear
10am39°F4°C6 mph10 km/h SoutheastMostly Clear
11am39°F4°C7 mph12 km/h SoutheastClear
12pm39°F4°C7 mph12 km/h SoutheastClear
1pm39°F4°C8 mph12 km/h SoutheastClear
2pm41°F5°C8 mph13 km/h SoutheastClear
3pm45°F7°C10 mph16 km/h SoutheastClear
4pm50°F10°C11 mph18 km/h SouthClear
5pm55°F13°C11 mph18 km/h SouthClear
DateLowHighWindDayNight
November 337°F3°C62°F17°C4 mph7 km/h from WestMostly ClearPartly Cloudy
November 439°F4°C66°F19°C10 mph16 km/h from SouthClearClear
November 538°F3°C55°F13°C7 mph11 km/h from NorthClearPartly Cloudy
November 638°F3°C58°F14°C14 mph23 km/h from SouthMostly CloudyPartly Cloudy
November 737°F3°C54°F12°C15 mph23 km/h from NorthwestPartly CloudyMostly Cloudy
November 834°F1°C52°F11°C15 mph23 km/h from WestDrizzleWindy
November 924°F-5°C39°F4°C15 mph24 km/h from NorthwestWindyMostly Clear

Yes

Low of 38°F4°C, High of 66°F19°C
Wind: 10 mph16 km/h
Precipitation: None

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