No
you don't need a jacket based on the weather in San Bruno, CA, USA 1 second ago
62°F17°C & Partly Cloudy
Wind is 2 mph4 km/h from the East, gusting to 4 mph7 km/h
| September 15 | ||||
| 1pm | 64°F18°C | 3 mph4 km/h East | Partly Cloudy | |
| 2pm | 68°F20°C | 3 mph4 km/h East | Partly Cloudy | |
| 3pm | 74°F23°C | 3 mph5 km/h East | Mostly Clear | |
| 4pm | 78°F25°C | 3 mph5 km/h Northeast | Clear | |
| 5pm | 80°F27°C | 3 mph5 km/h Northwest | Clear | |
| 6pm | 80°F27°C | 7 mph11 km/h West | Clear | |
| 7pm | 77°F25°C | 9 mph14 km/h West | Clear | |
| 8pm | 74°F23°C | 8 mph13 km/h West | Clear | |
| 9pm | 71°F22°C | 8 mph13 km/h West | Clear | |
| 10pm | 68°F20°C | 6 mph10 km/h West | Clear | |
| 11pm | 66°F19°C | 5 mph8 km/h West | Clear | |
| September 16 | ||||
| 12am | 65°F18°C | 4 mph6 km/h West | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 15 | 57°F14°C | 80°F27°C | 5 mph7 km/h from West | Mostly Clear | Mostly Clear |
| September 16 | 59°F15°C | 76°F24°C | 5 mph8 km/h from West | Clear | Mostly Clear |
| September 17 | 58°F14°C | 74°F23°C | 5 mph9 km/h from West | Mostly Clear | Mostly Cloudy |
| September 18 | 61°F16°C | 69°F21°C | 6 mph10 km/h from West | Mostly Cloudy | Cloudy |
| September 19 | 61°F16°C | 71°F22°C | 4 mph7 km/h from West | Mostly Cloudy | Mostly Cloudy |
| September 20 | 61°F16°C | 71°F21°C | 7 mph10 km/h from West | Partly Cloudy | Partly Cloudy |
| September 21 | 59°F15°C | 72°F22°C | 6 mph10 km/h from West | Clear | Clear |
No
Low of 59°F15°C, High of 76°F25°CWind: 5 mph8 km/h
Precipitation: None