No
you don't need a jacket based on the weather in San Francisco, CA 94117, USA 1 second ago
75°F24°C & Clear
Wind is 4 mph7 km/h from the Northeast, gusting to 9 mph15 km/h
| October 20 | ||||
| 9pm | 76°F24°C | 4 mph7 km/h Northeast | Clear | |
| 10pm | 76°F25°C | 4 mph7 km/h North | Clear | |
| 11pm | 76°F24°C | 5 mph7 km/h Northwest | Clear | |
| October 21 | ||||
| 12am | 74°F23°C | 5 mph7 km/h Northwest | Clear | |
| 1am | 71°F22°C | 4 mph7 km/h Northwest | Clear | |
| 2am | 68°F20°C | 4 mph6 km/h Northwest | Clear | |
| 3am | 66°F19°C | 3 mph5 km/h Northwest | Clear | |
| 4am | 64°F18°C | 3 mph5 km/h Northwest | Clear | |
| 5am | 63°F17°C | 3 mph5 km/h North | Mostly Clear | |
| 6am | 62°F17°C | 3 mph4 km/h Northeast | Mostly Clear | |
| 7am | 61°F16°C | 2 mph4 km/h Northeast | Mostly Clear | |
| 8am | 61°F16°C | 2 mph4 km/h Northeast | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| October 20 | 55°F13°C | 76°F25°C | 5 mph8 km/h from Northeast | Clear | Clear |
| October 21 | 56°F13°C | 73°F23°C | 5 mph8 km/h from West | Clear | Mostly Cloudy |
| October 22 | 58°F14°C | 66°F19°C | 9 mph14 km/h from Southwest | Mostly Cloudy | Mostly Cloudy |
| October 23 | 56°F13°C | 65°F18°C | 5 mph9 km/h from West | Partly Cloudy | Mostly Cloudy |
| October 24 | 55°F13°C | 65°F19°C | 6 mph10 km/h from West | Mostly Cloudy | Drizzle |
| October 25 | 56°F13°C | 65°F18°C | 7 mph12 km/h from West | Mostly Cloudy | Rain |
| October 26 | 55°F13°C | 64°F18°C | 7 mph11 km/h from West | Partly Cloudy | Partly Cloudy |
Yes
Low of 56°F14°C, High of 73°F23°CWind: 5 mph8 km/h
Precipitation: None