Yes
you do need a jacket based on the weather in San Francisco, CA, USA 1 second ago
Why? Because it's cool. Pleasantly cool, but cool!
58°F14°C & Clear
Wind is 1 mph2 km/h from the Northwest, gusting to 2 mph4 km/h
| October 29 | ||||
| 7am | 58°F14°C | 2 mph3 km/h Northwest | Clear | |
| 8am | 57°F14°C | 2 mph4 km/h North | Clear | |
| 9am | 57°F14°C | 2 mph3 km/h North | Clear | |
| 10am | 56°F13°C | 3 mph5 km/h North | Clear | |
| 11am | 56°F13°C | 4 mph6 km/h North | Clear | |
| 12pm | 55°F13°C | 4 mph7 km/h North | Clear | |
| 1pm | 55°F13°C | 5 mph9 km/h North | Clear | |
| 2pm | 56°F13°C | 5 mph7 km/h North | Clear | |
| 3pm | 56°F13°C | 4 mph7 km/h North | Clear | |
| 4pm | 59°F15°C | 4 mph7 km/h North | Clear | |
| 5pm | 63°F17°C | 4 mph7 km/h North | Clear | |
| 6pm | 67°F19°C | 4 mph7 km/h North | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| October 28 | 53°F12°C | 74°F23°C | 3 mph5 km/h from Northwest | Clear | Clear |
| October 29 | 55°F13°C | 75°F24°C | 5 mph8 km/h from Northwest | Clear | Mostly Clear |
| October 30 | 55°F13°C | 64°F18°C | 7 mph12 km/h from West | Mostly Cloudy | Partly Cloudy |
| October 31 | 53°F12°C | 66°F19°C | 4 mph6 km/h from West | Partly Cloudy | Mostly Clear |
| November 1 | 53°F12°C | 68°F20°C | 4 mph6 km/h from West | Mostly Clear | Partly Cloudy |
| November 2 | 55°F13°C | 71°F22°C | 4 mph6 km/h from West | Mostly Clear | Partly Cloudy |
| November 3 | 55°F13°C | 64°F18°C | 6 mph9 km/h from Southwest | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 55°F13°C, High of 74°F24°CWind: 5 mph8 km/h
Precipitation: None