No
you don't need a jacket based on the weather in Diamond Bar, CA, USA 1 second ago
68°F20°C & Mostly Clear
Wind is 6 mph10 km/h from the Southwest, gusting to 9 mph15 km/h
| November 6 | ||||
| 12am | 67°F20°C | 7 mph10 km/h West | Mostly Cloudy | |
| 1am | 64°F18°C | 6 mph9 km/h Southwest | Partly Cloudy | |
| 2am | 61°F16°C | 5 mph9 km/h West | Partly Cloudy | |
| 3am | 59°F15°C | 4 mph7 km/h West | Mostly Clear | |
| 4am | 58°F14°C | 3 mph5 km/h Southwest | Mostly Clear | |
| 5am | 57°F14°C | 3 mph5 km/h Southwest | Mostly Clear | |
| 6am | 56°F13°C | 3 mph5 km/h Southwest | Clear | |
| 7am | 56°F14°C | 2 mph4 km/h South | Clear | |
| 8am | 55°F13°C | 3 mph4 km/h Southeast | Clear | |
| 9am | 55°F13°C | 3 mph4 km/h Southeast | Clear | |
| 10am | 54°F12°C | 3 mph4 km/h East | Clear | |
| 11am | 53°F12°C | 3 mph5 km/h East | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| November 5 | 55°F13°C | 69°F21°C | 5 mph8 km/h from Southwest | Partly Cloudy | Clear |
| November 6 | 51°F11°C | 72°F22°C | 4 mph6 km/h from Southwest | Clear | Clear |
| November 7 | 55°F13°C | 80°F27°C | 3 mph6 km/h from Southwest | Clear | Clear |
| November 8 | 57°F14°C | 82°F28°C | 4 mph7 km/h from West | Clear | Mostly Clear |
| November 9 | 58°F14°C | 86°F30°C | 3 mph5 km/h from Southwest | Clear | Mostly Clear |
| November 10 | 60°F15°C | 84°F29°C | 4 mph6 km/h from Southwest | Partly Cloudy | Mostly Cloudy |
| November 11 | 58°F15°C | 70°F21°C | 4 mph6 km/h from Southwest | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 52°F11°C, High of 73°F23°CWind: 4 mph6 km/h
Precipitation: None