No

you don't need a jacket based on the weather in San Francisco, CA, USA 1 second ago

63°F17°C & Cloudy

Wind is 8 mph13 km/h from the West, gusting to 11 mph18 km/h
October 22
7pm64°F18°C8 mph13 km/h WestPartly Cloudy
8pm64°F18°C10 mph16 km/h WestMostly Cloudy
9pm64°F18°C10 mph16 km/h WestCloudy
10pm64°F18°C10 mph16 km/h WestMostly Cloudy
11pm63°F17°C11 mph17 km/h WestMostly Cloudy
October 23
12am62°F17°C10 mph17 km/h WestMostly Cloudy
1am61°F16°C10 mph15 km/h WestMostly Cloudy
2am60°F16°C7 mph10 km/h WestPartly Cloudy
3am59°F15°C6 mph9 km/h SouthwestMostly Cloudy
4am59°F15°C5 mph8 km/h SouthwestPartly Cloudy
5am58°F15°C7 mph11 km/h WestPartly Cloudy
6am58°F14°C8 mph12 km/h WestPartly Cloudy
DateLowHighWindDayNight
October 2258°F14°C64°F18°C8 mph12 km/h from WestMostly CloudyMostly Cloudy
October 2356°F14°C65°F18°C5 mph9 km/h from WestPartly CloudyPartly Cloudy
October 2455°F13°C65°F18°C7 mph11 km/h from WestMostly CloudyCloudy
October 2557°F14°C65°F18°C8 mph14 km/h from SouthwestDrizzleMostly Cloudy
October 2655°F13°C64°F18°C8 mph13 km/h from SouthwestDrizzlePartly Cloudy
October 2754°F12°C66°F19°C5 mph8 km/h from WestMostly ClearClear
October 2854°F12°C70°F21°C4 mph6 km/h from NorthwestClearMostly Clear

Yes

Low of 56°F14°C, High of 64°F18°C
Wind: 5 mph9 km/h
Precipitation: None

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