Yes
you do need a jacket based on the weather in San Francisco, CA, USA 1 second ago
Why? Because it's not very warm out!
57°F14°C & Mostly Clear
Wind is 5 mph8 km/h from the Southwest, gusting to 11 mph18 km/h
| November 1 | ||||
| 4am | 57°F14°C | 5 mph8 km/h Southwest | Mostly Clear | |
| 5am | 56°F13°C | 3 mph5 km/h Southwest | Mostly Clear | |
| 6am | 55°F13°C | 4 mph6 km/h Southwest | Mostly Clear | |
| 7am | 55°F13°C | 4 mph7 km/h Southwest | Mostly Clear | |
| 8am | 54°F12°C | 4 mph7 km/h Southwest | Mostly Clear | |
| 9am | 54°F12°C | 4 mph6 km/h Southwest | Mostly Clear | |
| 10am | 53°F12°C | 4 mph6 km/h Southwest | Mostly Clear | |
| 11am | 54°F12°C | 3 mph5 km/h Southwest | Partly Cloudy | |
| 12pm | 54°F12°C | 3 mph5 km/h Southwest | Partly Cloudy | |
| 1pm | 54°F12°C | 3 mph5 km/h Southwest | Partly Cloudy | |
| 2pm | 54°F12°C | 3 mph5 km/h Southwest | Partly Cloudy | |
| 3pm | 54°F12°C | 3 mph5 km/h Southwest | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| October 31 | 53°F12°C | 66°F19°C | 4 mph6 km/h from West | Mostly Clear | Mostly Clear |
| November 1 | 53°F12°C | 67°F20°C | 4 mph6 km/h from West | Mostly Clear | Partly Cloudy |
| November 2 | 56°F13°C | 69°F20°C | 5 mph8 km/h from West | Mostly Clear | Mostly Clear |
| November 3 | 53°F12°C | 64°F18°C | 6 mph10 km/h from West | Partly Cloudy | Mostly Cloudy |
| November 4 | 55°F13°C | 67°F19°C | 7 mph12 km/h from South | Mostly Cloudy | Rain |
| November 5 | 57°F14°C | 65°F18°C | 14 mph23 km/h from South | Rain | Mostly Cloudy |
| November 6 | 56°F13°C | 64°F18°C | 4 mph7 km/h from West | Partly Cloudy | Mostly Cloudy |
Yes
Low of 53°F12°C, High of 67°F20°CWind: 4 mph6 km/h
Precipitation: None