No
you don't need a jacket based on the weather in San Francisco, CA, USA 5 minutes ago
71°F22°C & Clear
Wind is 11 mph17 km/h from the West, gusting to 17 mph28 km/h
| September 26 | ||||
| 8pm | 71°F22°C | 11 mph18 km/h West | Clear | |
| 9pm | 69°F20°C | 10 mph16 km/h West | Clear | |
| 10pm | 66°F19°C | 6 mph10 km/h Southwest | Clear | |
| 11pm | 63°F17°C | 4 mph7 km/h Southwest | Clear | |
| September 27 | ||||
| 12am | 62°F16°C | 5 mph9 km/h Southwest | Clear | |
| 1am | 61°F16°C | 6 mph9 km/h Southwest | Clear | |
| 2am | 60°F16°C | 7 mph11 km/h Southwest | Clear | |
| 3am | 60°F16°C | 7 mph11 km/h Southwest | Clear | |
| 4am | 60°F16°C | 7 mph11 km/h Southwest | Mostly Clear | |
| 5am | 59°F15°C | 6 mph10 km/h Southwest | Mostly Clear | |
| 6am | 59°F15°C | 6 mph10 km/h Southwest | Mostly Clear | |
| 7am | 58°F15°C | 6 mph9 km/h Southwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 26 | 58°F14°C | 72°F22°C | 6 mph9 km/h from West | Clear | Mostly Clear |
| September 27 | 58°F14°C | 68°F20°C | 10 mph16 km/h from Southwest | Mostly Clear | Mostly Cloudy |
| September 28 | 60°F15°C | 69°F21°C | 8 mph13 km/h from Southwest | Mostly Cloudy | Cloudy |
| September 29 | 60°F15°C | 70°F21°C | 8 mph13 km/h from South | Drizzle | Drizzle |
| September 30 | 60°F15°C | 70°F21°C | 8 mph13 km/h from Southwest | Drizzle | Drizzle |
| October 1 | 59°F15°C | 70°F21°C | 4 mph7 km/h from Southwest | Rain | Mostly Cloudy |
| October 2 | 58°F14°C | 69°F21°C | 6 mph10 km/h from West | Partly Cloudy | Clear |
Yes
Low of 58°F15°C, High of 69°F21°CWind: 10 mph16 km/h
Precipitation: None