No
you don't need a jacket based on the weather in San Francisco, CA, USA 1 second ago
59°F15°C & Mostly Cloudy
Wind is 8 mph13 km/h from the Southwest, gusting to 17 mph28 km/h
| August 14 | ||||
| 3am | 59°F15°C | 8 mph13 km/h Southwest | Cloudy | |
| 4am | 58°F15°C | 9 mph14 km/h West | Cloudy | |
| 5am | 58°F14°C | 9 mph14 km/h West | Cloudy | |
| 6am | 57°F14°C | 8 mph13 km/h Southwest | Cloudy | |
| 7am | 57°F14°C | 8 mph12 km/h Southwest | Cloudy | |
| 8am | 57°F14°C | 7 mph11 km/h Southwest | Cloudy | |
| 9am | 57°F14°C | 6 mph10 km/h Southwest | Cloudy | |
| 10am | 57°F14°C | 6 mph10 km/h Southwest | Cloudy | |
| 11am | 57°F14°C | 6 mph9 km/h Southwest | Cloudy | |
| 12pm | 58°F15°C | 5 mph8 km/h Southwest | Cloudy | |
| 1pm | 60°F16°C | 5 mph8 km/h Southwest | Mostly Cloudy | |
| 2pm | 62°F17°C | 5 mph8 km/h Southwest | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 13 | 58°F15°C | 68°F20°C | 7 mph11 km/h from West | Mostly Cloudy | Cloudy |
| August 14 | 57°F14°C | 67°F19°C | 8 mph13 km/h from Southwest | Partly Cloudy | Mostly Clear |
| August 15 | 57°F14°C | 73°F23°C | 8 mph14 km/h from West | Clear | Partly Cloudy |
| August 16 | 60°F16°C | 73°F23°C | 10 mph17 km/h from West | Partly Cloudy | Mostly Cloudy |
| August 17 | 57°F14°C | 68°F20°C | 11 mph17 km/h from West | Partly Cloudy | Partly Cloudy |
| August 18 | 56°F13°C | 70°F21°C | 9 mph14 km/h from West | Mostly Clear | Mostly Clear |
| August 19 | 58°F14°C | 70°F21°C | 8 mph12 km/h from West | Mostly Clear | Mostly Clear |
Yes
Low of 57°F14°C, High of 67°F20°CWind: 8 mph13 km/h
Precipitation: None