No

you don't need a jacket based on the weather in San Francisco (Financial District), California, United States 1 second ago

61°F16°C & Windy

Wind is 17 mph27 km/h from the W, gusting to 29 mph47 km/h
April 26
4pm61°F16°C18 mph29 km/h WWindy
5pm62°F17°C19 mph31 km/h WWindy
6pm61°F16°C20 mph32 km/h WWindy
7pm61°F16°C20 mph31 km/h WWindy
8pm60°F15°C19 mph31 km/h WWindy
9pm58°F15°C19 mph30 km/h WWindy
10pm57°F14°C18 mph28 km/h WWindy
11pm55°F13°C16 mph25 km/h NWWindy
April 27
12am55°F13°C14 mph22 km/h NWMostly Clear
1am54°F12°C12 mph19 km/h NWMostly Clear
2am53°F12°C10 mph16 km/h NWMostly Clear
3am53°F12°C9 mph14 km/h NWMostly Clear
DateLowHighWindDayNight
April 2653°F12°C62°F17°C16 mph26 km/h from WWindyMostly Clear
April 2750°F10°C62°F17°C10 mph16 km/h from WMostly ClearMostly Clear
April 2852°F11°C65°F19°C11 mph18 km/h from WClearMostly Clear
April 2950°F10°C65°F18°C9 mph14 km/h from WClearClear
April 3050°F10°C66°F19°C7 mph12 km/h from WClearClear
May 151°F10°C65°F19°C8 mph13 km/h from WClearPartly Cloudy
May 251°F10°C64°F18°C10 mph16 km/h from WMostly ClearPartly Cloudy

Yes

Low of 50°F10°C, High of 63°F17°C
Wind: 10 mph16 km/h
Precipitation: None

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