No
you don't need a jacket based on the weather in San Francisco, CA 94108, USA 1 second ago
64°F18°C & Mostly Clear
Wind is 2 mph3 km/h from the Southeast, gusting to 4 mph7 km/h
| September 15 | ||||
| 2pm | 67°F20°C | 2 mph3 km/h East | Mostly Clear | |
| 3pm | 71°F22°C | 2 mph3 km/h Northeast | Clear | |
| 4pm | 74°F24°C | 2 mph4 km/h North | Clear | |
| 5pm | 77°F25°C | 4 mph7 km/h West | Clear | |
| 6pm | 77°F25°C | 9 mph14 km/h West | Clear | |
| 7pm | 74°F24°C | 10 mph16 km/h West | Clear | |
| 8pm | 73°F23°C | 9 mph14 km/h West | Clear | |
| 9pm | 71°F22°C | 8 mph13 km/h West | Clear | |
| 10pm | 68°F20°C | 7 mph11 km/h Southwest | Clear | |
| 11pm | 66°F19°C | 5 mph8 km/h Southwest | Clear | |
| September 16 | ||||
| 12am | 65°F18°C | 4 mph6 km/h Southwest | Clear | |
| 1am | 63°F17°C | 4 mph6 km/h Southwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 15 | 59°F15°C | 77°F25°C | 5 mph8 km/h from West | Mostly Clear | Mostly Clear |
| September 16 | 59°F15°C | 76°F24°C | 5 mph8 km/h from West | Mostly Clear | Mostly Clear |
| September 17 | 58°F14°C | 73°F23°C | 5 mph9 km/h from West | Mostly Clear | Mostly Cloudy |
| September 18 | 61°F16°C | 68°F20°C | 7 mph11 km/h from Southwest | Mostly Cloudy | Cloudy |
| September 19 | 61°F16°C | 72°F22°C | 5 mph8 km/h from West | Mostly Cloudy | Mostly Cloudy |
| September 20 | 61°F16°C | 71°F21°C | 7 mph11 km/h from West | Partly Cloudy | Partly Cloudy |
| September 21 | 58°F15°C | 74°F23°C | 6 mph10 km/h from Southwest | Clear | Clear |
No
Low of 59°F15°C, High of 76°F25°CWind: 5 mph8 km/h
Precipitation: None