Yes
you do need a jacket based on the weather in San Francisco, CA 94109, USA 1 second ago
Why? Because it's not very warm out.
54°F12°C & Cloudy
Wind is 4 mph7 km/h from the SE, gusting to 8 mph13 km/h
| April 24 | ||||
| 10am | 54°F12°C | 5 mph8 km/h SE | Cloudy | |
| 11am | 55°F13°C | 5 mph8 km/h SE | Cloudy | |
| 12pm | 55°F13°C | 5 mph9 km/h S | Cloudy | |
| 1pm | 57°F14°C | 5 mph8 km/h S | Cloudy | |
| 2pm | 58°F14°C | 5 mph8 km/h SW | Mostly Cloudy | |
| 3pm | 59°F15°C | 6 mph10 km/h SW | Mostly Cloudy | |
| 4pm | 60°F15°C | 7 mph12 km/h SW | Mostly Cloudy | |
| 5pm | 60°F16°C | 9 mph14 km/h W | Mostly Cloudy | |
| 6pm | 60°F16°C | 10 mph16 km/h W | Mostly Cloudy | |
| 7pm | 59°F15°C | 11 mph17 km/h W | Mostly Cloudy | |
| 8pm | 59°F15°C | 11 mph18 km/h W | Partly Cloudy | |
| 9pm | 58°F14°C | 11 mph17 km/h W | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 24 | 52°F11°C | 60°F16°C | 8 mph13 km/h from SW | Mostly Cloudy | Partly Cloudy |
| April 25 | 51°F10°C | 60°F16°C | 14 mph22 km/h from W | Mostly Cloudy | Mostly Cloudy |
| April 26 | 52°F11°C | 60°F16°C | 17 mph27 km/h from W | Windy | Mostly Clear |
| April 27 | 49°F9°C | 62°F17°C | 10 mph16 km/h from W | Mostly Clear | Mostly Clear |
| April 28 | 52°F11°C | 64°F18°C | 11 mph18 km/h from W | Clear | Mostly Clear |
| April 29 | 50°F10°C | 63°F17°C | 11 mph18 km/h from W | Mostly Clear | Mostly Clear |
| April 30 | 49°F10°C | 63°F17°C | 10 mph15 km/h from W | Mostly Clear | Mostly Clear |
Yes
Low of 51°F11°C, High of 60°F16°CWind: 14 mph22 km/h
Precipitation: 10% rain