Yes

you do need a jacket based on the weather in Louisville, KY, USA 1 second ago

Why? Because you're not freezing, but you’ll definitely start complaining if it lasts much longer!
42°F5°C & Clear

Wind is 2 mph4 km/h from the South, gusting to 4 mph6 km/h
October 24
7am41°F5°C3 mph4 km/h SouthClear
8am40°F5°C3 mph4 km/h SouthClear
9am39°F4°C3 mph4 km/h SouthwestMostly Clear
10am39°F4°C2 mph3 km/h SouthwestClear
11am38°F3°C1 mph2 km/h SouthClear
12pm38°F3°C2 mph3 km/h SouthMostly Clear
1pm40°F4°C1 mph2 km/h SoutheastMostly Clear
2pm44°F7°C1 mph1 km/h EastMostly Clear
3pm50°F10°C1 mph2 km/h NorthwestClear
4pm55°F13°C1 mph2 km/h NorthwestClear
5pm58°F14°C2 mph3 km/h NorthwestMostly Clear
6pm60°F16°C2 mph4 km/h NorthwestMostly Clear
DateLowHighWindDayNight
October 2438°F3°C62°F17°C2 mph3 km/h from NorthwestMostly ClearMostly Cloudy
October 2543°F6°C61°F16°C5 mph7 km/h from EastCloudyCloudy
October 2647°F9°C59°F15°C7 mph11 km/h from EastDrizzleDrizzle
October 2747°F9°C57°F14°C8 mph12 km/h from EastDrizzleDrizzle
October 2849°F9°C60°F16°C7 mph11 km/h from NortheastDrizzleCloudy
October 2948°F9°C57°F14°C9 mph15 km/h from NorthCloudyRain
October 3044°F7°C53°F12°C9 mph15 km/h from NorthwestRainPartly Cloudy

Yes

Low of 43°F6°C, High of 61°F16°C
Wind: 5 mph7 km/h
Precipitation: None

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