Yes

you do need a jacket based on the weather in Jacksonville, FL, USA 26 seconds ago

Why? Because the rain is just enough to ruin your hairstyle but not your mood and it's on the windy side!
70°F21°C & Rain

Wind is 11 mph18 km/h from the North, gusting to 25 mph40 km/h
October 11
1am69°F21°C13 mph20 km/h NorthThunderstorms
2am68°F20°C13 mph20 km/h NorthThunderstorms
3am67°F19°C13 mph20 km/h NorthThunderstorms
4am67°F19°C13 mph21 km/h NorthThunderstorms
5am66°F19°C14 mph22 km/h NorthDrizzle
6am67°F19°C13 mph21 km/h NorthDrizzle
7am66°F19°C13 mph21 km/h NorthDrizzle
8am65°F18°C12 mph20 km/h NorthCloudy
9am65°F18°C12 mph20 km/h NorthMostly Cloudy
10am67°F19°C13 mph21 km/h NorthMostly Cloudy
11am68°F20°C14 mph22 km/h NorthMostly Cloudy
12pm70°F21°C13 mph21 km/h NorthMostly Cloudy
DateLowHighWindDayNight
October 1165°F18°C75°F24°C12 mph20 km/h from NorthRainDrizzle
October 1262°F17°C77°F25°C8 mph13 km/h from NorthwestPartly CloudyPartly Cloudy
October 1364°F18°C76°F25°C7 mph11 km/h from NorthPartly CloudyMostly Clear
October 1463°F17°C79°F26°C8 mph12 km/h from NortheastClearClear
October 1561°F16°C79°F26°C7 mph11 km/h from NortheastClearClear
October 1662°F17°C78°F26°C8 mph13 km/h from NortheastClearClear
October 1763°F17°C76°F25°C7 mph11 km/h from NortheastPartly CloudyPartly Cloudy

No

Low of 63°F17°C, High of 77°F25°C
Wind: 8 mph13 km/h
Precipitation: 25% rain

Support This Page