No
you don't need a jacket based on the weather in Sunnyvale, CA 94086, USA 1 second ago
78°F26°C & Clear
Wind is 6 mph10 km/h from the North, gusting to 14 mph23 km/h
| August 31 | ||||
| 11pm | 75°F24°C | 5 mph8 km/h North | Clear | |
| September 1 | ||||
| 12am | 72°F22°C | 2 mph3 km/h West | Clear | |
| 1am | 71°F22°C | 3 mph5 km/h South | Clear | |
| 2am | 69°F21°C | 3 mph5 km/h Southeast | Clear | |
| 3am | 68°F20°C | 3 mph5 km/h Southwest | Clear | |
| 4am | 67°F20°C | 2 mph3 km/h West | Clear | |
| 5am | 66°F19°C | 3 mph4 km/h West | Clear | |
| 6am | 64°F18°C | 2 mph3 km/h West | Clear | |
| 7am | 63°F17°C | 2 mph3 km/h West | Clear | |
| 8am | 62°F17°C | 2 mph3 km/h West | Clear | |
| 9am | 61°F16°C | 1 mph2 km/h West | Clear | |
| 10am | 60°F16°C | 2 mph3 km/h Southwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 31 | 60°F15°C | 92°F34°C | 4 mph7 km/h from North | Clear | Clear |
| September 1 | 60°F16°C | 89°F32°C | 5 mph8 km/h from Northwest | Clear | Clear |
| September 2 | 60°F16°C | 86°F30°C | 5 mph7 km/h from Northwest | Clear | Mostly Clear |
| September 3 | 58°F15°C | 81°F27°C | 5 mph7 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 4 | 57°F14°C | 79°F26°C | 5 mph8 km/h from Northwest | Mostly Clear | Partly Cloudy |
| September 5 | 59°F15°C | 76°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 | Mostly Clear | Mostly Clear |
No
Low of 61°F16°C, High of 90°F32°CWind: 5 mph8 km/h
Precipitation: None