Yes

you do need a jacket based on the weather in Los Angeles, CA, USA 1 second ago

Why? Because it's pretty chilly.
58°F14°C & Cloudy

Wind is 4 mph6 km/h from the S, gusting to 9 mph14 km/h
April 25
2pm60°F16°C4 mph6 km/h SCloudy
3pm62°F16°C4 mph7 km/h SWMostly Cloudy
4pm63°F17°C5 mph8 km/h SWMostly Cloudy
5pm64°F18°C6 mph10 km/h SWMostly Cloudy
6pm65°F18°C7 mph12 km/h SWPartly Cloudy
7pm64°F18°C8 mph12 km/h SWPartly Cloudy
8pm63°F17°C8 mph13 km/h SWPartly Cloudy
9pm62°F16°C7 mph11 km/h SWPartly Cloudy
10pm60°F16°C5 mph9 km/h SWPartly Cloudy
11pm58°F15°C4 mph7 km/h SWPartly Cloudy
April 26
12am57°F14°C4 mph6 km/h SWPartly Cloudy
1am57°F14°C3 mph5 km/h SPartly Cloudy
DateLowHighWindDayNight
April 2554°F12°C65°F18°C5 mph9 km/h from SWMostly CloudyPartly Cloudy
April 2653°F12°C70°F21°C8 mph13 km/h from SWMostly ClearClear
April 2753°F12°C72°F22°C6 mph10 km/h from SWClearClear
April 2854°F12°C74°F23°C6 mph9 km/h from SWClearClear
April 2957°F14°C78°F25°C5 mph9 km/h from SWClearClear
April 3057°F14°C77°F25°C6 mph9 km/h from SWClearMostly Clear
May 156°F13°C76°F24°C5 mph9 km/h from SWMostly ClearPartly Cloudy

Yes

Low of 54°F12°C, High of 70°F21°C
Wind: 8 mph13 km/h
Precipitation: None

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