Yes
you do need a jacket based on the weather in Campbell, CA, USA 1 second ago
Why? Because it's cool. Pleasantly cool, but cool!
58°F15°C & Mostly Clear
Wind is 2 mph4 km/h from the West, gusting to 4 mph7 km/h
| September 15 | ||||
| 10am | 58°F14°C | 2 mph3 km/h West | Partly Cloudy | |
| 11am | 59°F15°C | 1 mph2 km/h West | Partly Cloudy | |
| 12pm | 63°F17°C | 1 mph1 km/h North | Partly Cloudy | |
| 1pm | 69°F20°C | 1 mph2 km/h North | Mostly Clear | |
| 2pm | 74°F23°C | 2 mph4 km/h North | Clear | |
| 3pm | 78°F26°C | 3 mph4 km/h North | Clear | |
| 4pm | 82°F28°C | 3 mph5 km/h North | Clear | |
| 5pm | 86°F30°C | 3 mph5 km/h North | Clear | |
| 6pm | 88°F31°C | 3 mph5 km/h North | Clear | |
| 7pm | 89°F32°C | 4 mph6 km/h Northwest | Clear | |
| 8pm | 89°F31°C | 5 mph7 km/h Northwest | Clear | |
| 9pm | 86°F30°C | 6 mph10 km/h Northwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 15 | 58°F14°C | 89°F32°C | 3 mph5 km/h from Northwest | Clear | Clear |
| September 16 | 62°F17°C | 90°F32°C | 4 mph6 km/h from Northwest | Clear | Clear |
| September 17 | 62°F17°C | 89°F32°C | 4 mph6 km/h from Northwest | Mostly Clear | Partly Cloudy |
| September 18 | 63°F17°C | 80°F27°C | 3 mph5 km/h from Northwest | Mostly Cloudy | Mostly Cloudy |
| September 19 | 62°F17°C | 81°F27°C | 3 mph4 km/h from Northwest | Partly Cloudy | Mostly Clear |
| September 20 | 61°F16°C | 81°F27°C | 4 mph6 km/h from Northwest | Mostly Clear | Clear |
| September 21 | 60°F15°C | 85°F29°C | 4 mph7 km/h from North | Clear | Clear |
No
Low of 63°F17°C, High of 90°F32°CWind: 4 mph6 km/h
Precipitation: None