No
you don't need a jacket based on the weather in Norman Y. Mineta San Jose International Airport (SJC), 1701 Airport Blvd, San Jose, CA 95110, USA 1 second ago
86°F30°C & Clear
Wind is 9 mph15 km/h from the Northwest, gusting to 16 mph26 km/h
| September 16 | ||||
| 8pm | 85°F29°C | 9 mph14 km/h Northwest | Clear | |
| 9pm | 82°F28°C | 7 mph12 km/h Northwest | Clear | |
| 10pm | 78°F26°C | 6 mph9 km/h Northwest | Clear | |
| 11pm | 75°F24°C | 4 mph7 km/h Northwest | Clear | |
| September 17 | ||||
| 12am | 72°F22°C | 3 mph5 km/h Northwest | Clear | |
| 1am | 70°F21°C | 2 mph3 km/h West | Clear | |
| 2am | 70°F21°C | 1 mph2 km/h West | Clear | |
| 3am | 68°F20°C | 1 mph1 km/h Northwest | Clear | |
| 4am | 67°F19°C | 1 mph1 km/h Northwest | Clear | |
| 5am | 65°F18°C | 1 mph1 km/h Northwest | Clear | |
| 6am | 64°F18°C | 1 mph1 km/h Northwest | Clear | |
| 7am | 62°F17°C | 1 mph1 km/h Northeast | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 16 | 62°F17°C | 88°F31°C | 4 mph7 km/h from Northwest | Clear | Clear |
| September 17 | 60°F16°C | 90°F32°C | 4 mph7 km/h from Northwest | Mostly Clear | Mostly Cloudy |
| September 18 | 65°F18°C | 80°F27°C | 3 mph4 km/h from Southwest | Cloudy | Mostly Cloudy |
| September 19 | 61°F16°C | 80°F27°C | 3 mph5 km/h from West | Mostly Clear | Mostly Clear |
| September 20 | 60°F15°C | 82°F28°C | 4 mph7 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 21 | 60°F16°C | 86°F30°C | 4 mph6 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 22 | 63°F17°C | 82°F28°C | 4 mph6 km/h from Northwest | Partly Cloudy | Partly Cloudy |
No
Low of 61°F16°C, High of 90°F32°CWind: 4 mph7 km/h
Precipitation: None