No

you don't need a jacket based on the weather in Chula Vista (Rancho del Rey), California, United States 1 second ago

60°F15°C & Cloudy

Wind is 7 mph11 km/h from the W, gusting to 13 mph21 km/h
April 25
11pm59°F15°C6 mph10 km/h WMostly Cloudy
April 26
12am58°F15°C6 mph9 km/h WMostly Cloudy
1am58°F14°C5 mph8 km/h WMostly Cloudy
2am58°F14°C5 mph8 km/h WMostly Cloudy
3am57°F14°C5 mph8 km/h WCloudy
4am57°F14°C5 mph8 km/h WCloudy
5am56°F13°C4 mph7 km/h WMostly Cloudy
6am56°F13°C4 mph6 km/h SWMostly Cloudy
7am55°F13°C5 mph7 km/h SWCloudy
8am55°F13°C5 mph8 km/h SWCloudy
9am55°F13°C6 mph10 km/h SWCloudy
10am56°F13°C6 mph10 km/h SWCloudy
DateLowHighWindDayNight
April 2556°F13°C66°F19°C7 mph11 km/h from WPartly CloudyMostly Cloudy
April 2655°F13°C63°F17°C10 mph16 km/h from WMostly CloudyMostly Cloudy
April 2755°F13°C67°F19°C7 mph12 km/h from SWMostly ClearMostly Clear
April 2851°F11°C70°F21°C6 mph10 km/h from WClearMostly Clear
April 2953°F12°C71°F22°C6 mph9 km/h from SWClearMostly Clear
April 3055°F13°C69°F20°C7 mph11 km/h from SWMostly ClearMostly Clear
May 155°F13°C71°F22°C6 mph10 km/h from SWMostly ClearMostly Clear

Yes

Low of 55°F13°C, High of 64°F18°C
Wind: 10 mph16 km/h
Precipitation: 8% rain

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