Yes

you do need a jacket based on the weather in Los Angeles (Hollywood), California, United States 1 second ago

Why? Because it's pretty chilly.
53°F12°C & Mostly Cloudy

Wind is 2 mph3 km/h from the NW, gusting to 4 mph6 km/h
April 24
5am53°F12°C2 mph3 km/h EMostly Clear
6am52°F11°C3 mph4 km/h EMostly Clear
7am51°F11°C3 mph5 km/h EMostly Clear
8am51°F11°C3 mph5 km/h EMostly Clear
9am51°F11°C3 mph5 km/h EPartly Cloudy
10am52°F11°C3 mph5 km/h EPartly Cloudy
11am55°F13°C4 mph6 km/h SEPartly Cloudy
12pm57°F14°C4 mph7 km/h SEPartly Cloudy
1pm60°F15°C4 mph7 km/h SPartly Cloudy
2pm62°F17°C5 mph8 km/h SPartly Cloudy
3pm64°F18°C6 mph10 km/h SPartly Cloudy
4pm65°F18°C8 mph12 km/h SWPartly Cloudy
DateLowHighWindDayNight
April 2451°F11°C65°F18°C6 mph10 km/h from SWPartly CloudyMostly Cloudy
April 2553°F11°C62°F17°C5 mph9 km/h from SMostly CloudyPartly Cloudy
April 2652°F11°C67°F20°C7 mph11 km/h from SWPartly CloudyMostly Clear
April 2752°F11°C70°F21°C6 mph10 km/h from SWClearClear
April 2852°F11°C73°F23°C5 mph9 km/h from SWClearClear
April 2956°F13°C79°F26°C5 mph8 km/h from SWClearMostly Clear
April 3057°F14°C78°F26°C5 mph8 km/h from SMostly ClearMostly Clear

Yes

Low of 53°F12°C, High of 63°F17°C
Wind: 5 mph9 km/h
Precipitation: 2% rain

Support This Page