No
you don't need a jacket based on the weather in San Jose, CA, USA 1 second ago
87°F30°C & Clear
Wind is 7 mph12 km/h from the Northwest, gusting to 12 mph19 km/h
| September 1 | ||||
| 7pm | 87°F30°C | 8 mph13 km/h Northwest | Clear | |
| 8pm | 87°F31°C | 8 mph13 km/h Northwest | Clear | |
| 9pm | 85°F29°C | 7 mph11 km/h Northwest | Clear | |
| 10pm | 81°F27°C | 5 mph8 km/h Northwest | Clear | |
| 11pm | 76°F25°C | 3 mph5 km/h Northwest | Clear | |
| September 2 | ||||
| 12am | 73°F23°C | 3 mph4 km/h West | Clear | |
| 1am | 71°F22°C | 3 mph4 km/h West | Clear | |
| 2am | 71°F22°C | 2 mph4 km/h Northwest | Clear | |
| 3am | 70°F21°C | 2 mph3 km/h West | Clear | |
| 4am | 68°F20°C | 2 mph3 km/h Northeast | Clear | |
| 5am | 67°F19°C | 2 mph3 km/h East | Clear | |
| 6am | 66°F19°C | 2 mph3 km/h Southeast | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 1 | 62°F16°C | 87°F31°C | 5 mph7 km/h from Northwest | Clear | Mostly Clear |
| September 2 | 64°F18°C | 90°F32°C | 4 mph6 km/h from West | Clear | Clear |
| September 3 | 59°F15°C | 83°F28°C | 5 mph8 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 4 | 58°F15°C | 79°F26°C | 5 mph8 km/h from Northwest | Mostly Clear | Partly Cloudy |
| September 5 | 59°F15°C | 77°F25°C | 5 mph9 km/h from Northwest | Mostly Clear | Partly Cloudy |
| September 6 | 57°F14°C | 77°F25°C | 5 mph8 km/h from Northwest | Partly Cloudy | Mostly Clear |
| September 7 | 58°F15°C | 78°F26°C | 5 mph8 km/h from Northwest | Mostly Clear | Mostly Clear |
No
Low of 64°F18°C, High of 90°F32°CWind: 4 mph6 km/h
Precipitation: None