Yes

you do need a jacket based on the weather in Council Bluffs, IA, USA 1 second ago

Why? Because it's cold enough that makes you wish you had a hat, but you're still too proud to admit it!
49°F9°C & Clear

Wind is 7 mph12 km/h from the Northwest, gusting to 17 mph28 km/h
October 22
2am48°F9°C8 mph13 km/h NorthwestClear
3am47°F8°C7 mph12 km/h NorthwestClear
4am46°F8°C7 mph11 km/h NorthwestClear
5am44°F7°C6 mph10 km/h NorthwestClear
6am43°F6°C5 mph9 km/h NorthwestClear
7am41°F5°C5 mph8 km/h WestClear
8am40°F4°C5 mph8 km/h WestClear
9am39°F4°C4 mph6 km/h WestClear
10am38°F4°C4 mph6 km/h WestClear
11am38°F3°C4 mph6 km/h WestClear
12pm37°F3°C3 mph6 km/h WestClear
1pm37°F3°C3 mph5 km/h WestClear
DateLowHighWindDayNight
October 2144°F7°C58°F14°C14 mph22 km/h from NorthwestMostly ClearClear
October 2237°F3°C62°F17°C6 mph10 km/h from NorthwestClearClear
October 2338°F3°C62°F17°C3 mph6 km/h from SoutheastMostly ClearPartly Cloudy
October 2442°F6°C60°F15°C10 mph17 km/h from SoutheastCloudyCloudy
October 2549°F9°C58°F15°C8 mph14 km/h from SoutheastCloudyMostly Cloudy
October 2650°F10°C60°F16°C10 mph15 km/h from SoutheastCloudyCloudy
October 2752°F11°C60°F15°C15 mph24 km/h from SoutheastThunderstormsMostly Cloudy

Yes

Low of 37°F3°C, High of 62°F17°C
Wind: 6 mph10 km/h
Precipitation: None

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