Yes

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

Why? Because light rain: when the sky can't decide if it’s serious or just messing with you and there's a refreshing nip in the air!
45°F7°C & Drizzle

Wind is 4 mph7 km/h from the Southeast, gusting to 10 mph16 km/h
December 26
9am45°F7°C5 mph8 km/h SoutheastCloudy
10am46°F8°C5 mph8 km/h SoutheastCloudy
11am48°F9°C6 mph10 km/h SoutheastDrizzle
12pm50°F10°C7 mph11 km/h SoutheastCloudy
1pm52°F11°C7 mph11 km/h SoutheastCloudy
2pm54°F12°C7 mph12 km/h SoutheastCloudy
3pm55°F13°C8 mph12 km/h SoutheastCloudy
4pm56°F13°C8 mph12 km/h SoutheastCloudy
5pm55°F13°C7 mph12 km/h SoutheastMostly Cloudy
6pm54°F12°C7 mph11 km/h SoutheastMostly Cloudy
7pm52°F11°C7 mph11 km/h SoutheastCloudy
8pm51°F11°C7 mph12 km/h SoutheastCloudy
DateLowHighWindDayNight
December 2644°F6°C56°F13°C7 mph11 km/h from SoutheastDrizzleRain
December 2746°F8°C53°F12°C6 mph10 km/h from SouthDrizzleDrizzle
December 2844°F7°C55°F13°C5 mph8 km/h from SouthDrizzleDrizzle
December 2940°F5°C56°F13°C6 mph10 km/h from WestPartly CloudyMostly Cloudy
December 3040°F5°C60°F16°C9 mph14 km/h from SoutheastMostly CloudyDrizzle
December 3132°F-0°C46°F8°C12 mph20 km/h from NorthwestPartly CloudyMostly Cloudy
January 128°F-2°C37°F3°C11 mph17 km/h from NorthwestPartly CloudyClear

Yes

Low of 46°F8°C, High of 53°F12°C
Wind: 6 mph10 km/h
Precipitation: 76% rain

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