Yes

you do need a jacket based on the weather in Clarksville, TN, USA 1 second ago

Why? Because it's cool. Pleasantly cool, but cool.
56°F13°C & Clear

Wind is 2 mph4 km/h from the N, gusting to 9 mph14 km/h
March 28
1pm56°F14°C3 mph5 km/h NClear
2pm58°F15°C3 mph5 km/h NWClear
3pm60°F16°C4 mph6 km/h NWClear
4pm62°F16°C4 mph7 km/h NWClear
5pm62°F17°C5 mph8 km/h WClear
6pm62°F16°C5 mph8 km/h WClear
7pm60°F15°C5 mph7 km/h WClear
8pm56°F13°C4 mph6 km/h WClear
9pm52°F11°C4 mph6 km/h SWClear
10pm50°F10°C4 mph7 km/h SWClear
11pm48°F9°C5 mph8 km/h SWClear
March 29
12am46°F8°C5 mph8 km/h SWClear
DateLowHighWindDayNight
March 2833°F0°C62°F17°C4 mph6 km/h from NWClearClear
March 2940°F5°C70°F21°C8 mph13 km/h from SWMostly ClearMostly Cloudy
March 3053°F12°C75°F24°C12 mph19 km/h from SWPartly CloudyPartly Cloudy
March 3159°F15°C77°F25°C10 mph16 km/h from SWMostly CloudyCloudy
April 164°F18°C75°F24°C11 mph18 km/h from SWCloudyMostly Cloudy
April 251°F10°C71°F22°C12 mph19 km/h from WRainPartly Cloudy
April 342°F5°C60°F16°C12 mph19 km/h from NWMostly ClearClear

Yes

Low of 40°F5°C, High of 70°F21°C
Wind: 8 mph13 km/h
Precipitation: None

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