No
you don't need a jacket based on the weather in Palo Alto, CA, USA 1 second ago
71°F22°C & Clear
Wind is 4 mph6 km/h from the Northwest, gusting to 9 mph14 km/h
| August 21 | ||||
| 12am | 68°F20°C | 3 mph6 km/h South | Clear | |
| 1am | 66°F19°C | 4 mph6 km/h South | Clear | |
| 2am | 64°F18°C | 4 mph6 km/h South | Clear | |
| 3am | 63°F17°C | 3 mph6 km/h South | Clear | |
| 4am | 62°F17°C | 3 mph5 km/h South | Clear | |
| 5am | 61°F16°C | 3 mph4 km/h Northwest | Clear | |
| 6am | 60°F15°C | 1 mph2 km/h Southwest | Clear | |
| 7am | 59°F15°C | 2 mph3 km/h West | Clear | |
| 8am | 58°F14°C | 2 mph4 km/h Southwest | Mostly Clear | |
| 9am | 57°F14°C | 2 mph4 km/h Southwest | Mostly Clear | |
| 10am | 58°F14°C | 3 mph4 km/h Southwest | Partly Cloudy | |
| 11am | 61°F16°C | 2 mph3 km/h Southwest | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 20 | 55°F13°C | 90°F32°C | 3 mph4 km/h from North | Clear | Clear |
| August 21 | 57°F14°C | 87°F31°C | 5 mph8 km/h from Northwest | Partly Cloudy | Mostly Cloudy |
| August 22 | 57°F14°C | 80°F27°C | 5 mph9 km/h from Northwest | Mostly Clear | Partly Cloudy |
| August 23 | 57°F14°C | 78°F25°C | 5 mph9 km/h from Northwest | Mostly Clear | Mostly Clear |
| August 24 | 57°F14°C | 76°F24°C | 5 mph9 km/h from Northwest | Mostly Clear | Mostly Clear |
| August 25 | 57°F14°C | 76°F24°C | 5 mph8 km/h from Northwest | Mostly Clear | Mostly Clear |
| August 26 | 56°F13°C | 76°F25°C | 4 mph7 km/h from Northwest | Clear | Mostly Clear |
Yes
Low of 57°F14°C, High of 88°F31°CWind: 5 mph8 km/h
Precipitation: None