No
you don't need a jacket based on the weather in Ontario, CA, USA 1 second ago
80°F27°C & Cloudy
Wind is 9 mph15 km/h from the West, gusting to 14 mph22 km/h
| November 2 | ||||
| 10pm | 80°F27°C | 9 mph14 km/h West | Mostly Cloudy | |
| 11pm | 80°F26°C | 8 mph13 km/h West | Partly Cloudy | |
| November 3 | ||||
| 12am | 78°F26°C | 7 mph12 km/h West | Mostly Clear | |
| 1am | 73°F23°C | 6 mph10 km/h West | Partly Cloudy | |
| 2am | 69°F20°C | 5 mph8 km/h West | Mostly Cloudy | |
| 3am | 66°F19°C | 4 mph7 km/h Northwest | Partly Cloudy | |
| 4am | 64°F18°C | 4 mph6 km/h Northwest | Clear | |
| 5am | 64°F18°C | 2 mph4 km/h Northwest | Mostly Clear | |
| 6am | 63°F17°C | 3 mph4 km/h Northwest | Mostly Clear | |
| 7am | 62°F17°C | 2 mph3 km/h North | Mostly Cloudy | |
| 8am | 61°F16°C | 2 mph3 km/h Northeast | Mostly Cloudy | |
| 9am | 60°F16°C | 2 mph3 km/h North | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| November 2 | 54°F12°C | 81°F27°C | 5 mph9 km/h from West | Mostly Clear | Partly Cloudy |
| November 3 | 57°F14°C | 78°F26°C | 4 mph6 km/h from Southwest | Partly Cloudy | Mostly Clear |
| November 4 | 55°F13°C | 78°F26°C | 4 mph6 km/h from Southwest | Clear | Mostly Clear |
| November 5 | 53°F12°C | 71°F22°C | 4 mph7 km/h from Southwest | Partly Cloudy | Mostly Clear |
| November 6 | 51°F11°C | 73°F23°C | 3 mph5 km/h from Southwest | Mostly Clear | Clear |
| November 7 | 55°F13°C | 79°F26°C | 3 mph5 km/h from West | Clear | Clear |
| November 8 | 58°F15°C | 81°F27°C | 3 mph5 km/h from Southwest | Clear | Clear |
Yes
Low of 57°F14°C, High of 78°F26°CWind: 4 mph6 km/h
Precipitation: None