Yes
you do need a jacket based on the weather in San Jose (Berryessa), California, United States 1 second ago
Why? Because it's not very warm out!
56°F13°C & Partly Cloudy
Wind is 3 mph5 km/h from the North, gusting to 7 mph11 km/h
| July 26 | ||||
| 6am | 56°F13°C | 3 mph5 km/h North | Partly Cloudy | |
| 7am | 56°F13°C | 3 mph4 km/h North | Partly Cloudy | |
| 8am | 55°F13°C | 2 mph3 km/h Northeast | Partly Cloudy | |
| 9am | 55°F13°C | 2 mph3 km/h East | Partly Cloudy | |
| 10am | 56°F13°C | 2 mph3 km/h Southeast | Mostly Cloudy | |
| 11am | 59°F15°C | 3 mph4 km/h East | Mostly Cloudy | |
| 12pm | 60°F16°C | 3 mph5 km/h Northeast | Mostly Cloudy | |
| 1pm | 62°F17°C | 3 mph4 km/h West | Mostly Cloudy | |
| 2pm | 66°F19°C | 4 mph6 km/h Northwest | Partly Cloudy | |
| 3pm | 69°F21°C | 5 mph7 km/h Northwest | Mostly Clear | |
| 4pm | 73°F23°C | 6 mph10 km/h Northwest | Clear | |
| 5pm | 75°F24°C | 7 mph12 km/h Northwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| July 26 | 55°F13°C | 76°F24°C | 6 mph9 km/h from Northwest | Mostly Clear | Mostly Clear |
| July 27 | 55°F13°C | 76°F24°C | 5 mph8 km/h from Northwest | Mostly Clear | Mostly Clear |
| July 28 | 55°F13°C | 81°F27°C | 5 mph8 km/h from Northwest | Mostly Clear | Mostly Clear |
| July 29 | 56°F13°C | 80°F26°C | 5 mph8 km/h from Northwest | Mostly Clear | Mostly Clear |
| July 30 | 56°F13°C | 76°F25°C | 5 mph8 km/h from West | Clear | Partly Cloudy |
| July 31 | 57°F14°C | 79°F26°C | 4 mph7 km/h from West | Mostly Clear | Clear |
| August 1 | 56°F14°C | 81°F27°C | 5 mph8 km/h from West | Clear | Clear |
Yes
Low of 55°F13°C, High of 76°F25°CWind: 5 mph8 km/h
Precipitation: None