Yes

you do need a jacket based on the weather in Sioux Falls, SD 57104, USA 1 second ago

Why? Because it's so gusty, you’re basically doing accidental parkour!
65°F18°C & Cloudy

Wind is 11 mph17 km/h from the South, gusting to 20 mph32 km/h
September 18
12pm67°F20°C12 mph20 km/h SouthMostly Cloudy
1pm69°F21°C13 mph21 km/h SouthCloudy
2pm71°F22°C14 mph22 km/h SouthMostly Cloudy
3pm73°F23°C13 mph22 km/h SouthCloudy
4pm73°F23°C13 mph21 km/h SouthCloudy
5pm73°F23°C13 mph20 km/h SouthCloudy
6pm73°F23°C11 mph17 km/h SouthCloudy
7pm72°F22°C8 mph14 km/h SouthCloudy
8pm70°F21°C6 mph9 km/h SouthMostly Cloudy
9pm67°F19°C5 mph8 km/h SouthCloudy
10pm65°F19°C5 mph9 km/h SouthCloudy
11pm64°F18°C5 mph8 km/h SouthCloudy
DateLowHighWindDayNight
September 1861°F16°C73°F23°C11 mph17 km/h from SouthMostly CloudyDrizzle
September 1959°F15°C69°F20°C10 mph16 km/h from WestDrizzleRain
September 2057°F14°C71°F22°C7 mph11 km/h from WestMostly CloudyMostly Clear
September 2154°F12°C76°F24°C6 mph10 km/h from SouthMostly ClearMostly Clear
September 2259°F15°C78°F25°C6 mph10 km/h from NorthwestPartly CloudyDrizzle
September 2355°F13°C73°F23°C8 mph13 km/h from NortheastDrizzleMostly Clear
September 2454°F12°C74°F23°C10 mph17 km/h from NortheastMostly ClearMostly Clear

No

Low of 59°F15°C, High of 69°F21°C
Wind: 10 mph16 km/h
Precipitation: 51% rain

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