No
you don't need a jacket based on the weather in Sunnyvale, CA, USA 1 second ago
62°F17°C & Clear
Wind is 3 mph5 km/h from the North, gusting to 6 mph10 km/h
| August 25 | ||||
| 1am | 62°F16°C | 3 mph5 km/h North | Mostly Clear | |
| 2am | 61°F16°C | 3 mph5 km/h Northwest | Partly Cloudy | |
| 3am | 61°F16°C | 2 mph4 km/h North | Partly Cloudy | |
| 4am | 61°F16°C | 2 mph4 km/h Northwest | Mostly Cloudy | |
| 5am | 61°F16°C | 2 mph3 km/h Northwest | Mostly Cloudy | |
| 6am | 60°F16°C | 2 mph4 km/h North | Mostly Cloudy | |
| 7am | 60°F15°C | 3 mph4 km/h Northwest | Partly Cloudy | |
| 8am | 59°F15°C | 2 mph4 km/h Northwest | Partly Cloudy | |
| 9am | 59°F15°C | 2 mph3 km/h Southwest | Partly Cloudy | |
| 10am | 58°F15°C | 2 mph4 km/h Southwest | Partly Cloudy | |
| 11am | 60°F15°C | 2 mph3 km/h West | Partly Cloudy | |
| 12pm | 62°F17°C | 2 mph3 km/h North | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 24 | 61°F16°C | 74°F23°C | 3 mph5 km/h from North | Partly Cloudy | Partly Cloudy |
| August 25 | 58°F15°C | 80°F27°C | 4 mph7 km/h from Northwest | Mostly Clear | Mostly Clear |
| August 26 | 59°F15°C | 82°F28°C | 4 mph7 km/h from Northwest | Clear | Mostly Clear |
| August 27 | 58°F14°C | 81°F27°C | 4 mph7 km/h from Northwest | Clear | Mostly Clear |
| August 28 | 56°F13°C | 81°F27°C | 4 mph7 km/h from Northwest | Clear | Mostly Clear |
| August 29 | 56°F13°C | 81°F27°C | 5 mph8 km/h from Northwest | Mostly Clear | Mostly Clear |
| August 30 | 56°F13°C | 83°F28°C | 5 mph8 km/h from Northwest | Mostly Clear | Mostly Clear |
Yes
Low of 58°F15°C, High of 80°F27°CWind: 4 mph7 km/h
Precipitation: None