Yes

you do need a jacket based on the weather in Springfield, MO, USA 1 second ago

Why? Because it's not very warm out and it's so windy, your hat has officially retired from your head!
57°F14°C & Clear

Wind is 8 mph13 km/h from the West, gusting to 23 mph37 km/h
November 3
5pm59°F15°C8 mph14 km/h WestClear
6pm62°F16°C7 mph12 km/h WestClear
7pm63°F17°C6 mph9 km/h WestClear
8pm64°F18°C4 mph7 km/h WestClear
9pm65°F18°C3 mph6 km/h WestClear
10pm64°F18°C1 mph2 km/h NorthwestClear
11pm60°F16°C2 mph3 km/h NortheastMostly Clear
November 4
12am56°F13°C3 mph5 km/h EastClear
1am54°F12°C4 mph6 km/h EastClear
2am52°F11°C5 mph7 km/h SoutheastClear
3am51°F11°C5 mph8 km/h SoutheastClear
4am50°F10°C6 mph10 km/h SoutheastClear
DateLowHighWindDayNight
November 340°F4°C65°F18°C4 mph7 km/h from WestClearClear
November 447°F8°C71°F22°C13 mph21 km/h from SouthMostly ClearPartly Cloudy
November 550°F10°C69°F21°C7 mph12 km/h from NorthwestClearClear
November 648°F9°C69°F21°C13 mph22 km/h from SouthMostly ClearMostly Clear
November 750°F10°C66°F19°C10 mph16 km/h from NorthwestClearMostly Clear
November 846°F8°C67°F19°C9 mph14 km/h from SouthwestMostly CloudyMostly Clear
November 936°F2°C49°F9°C13 mph21 km/h from NorthwestMostly ClearClear

Yes

Low of 47°F9°C, High of 71°F22°C
Wind: 13 mph21 km/h
Precipitation: None

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