No
you don't need a jacket based on the weather in Ontario, CA, USA 1 second ago
62°F17°C & Mostly Cloudy
Wind is 2 mph4 km/h from the West, gusting to 7 mph12 km/h
| November 4 | ||||
| 4am | 62°F17°C | 3 mph5 km/h West | Mostly Cloudy | |
| 5am | 60°F16°C | 3 mph5 km/h North | Mostly Cloudy | |
| 6am | 60°F15°C | 3 mph5 km/h North | Mostly Cloudy | |
| 7am | 59°F15°C | 2 mph4 km/h Northwest | Partly Cloudy | |
| 8am | 57°F14°C | 4 mph6 km/h Northwest | Mostly Clear | |
| 9am | 56°F13°C | 3 mph5 km/h Northwest | Clear | |
| 10am | 55°F13°C | 3 mph5 km/h Northwest | Mostly Clear | |
| 11am | 55°F13°C | 2 mph4 km/h North | Mostly Clear | |
| 12pm | 54°F12°C | 2 mph3 km/h Northeast | Partly Cloudy | |
| 1pm | 54°F12°C | 2 mph3 km/h Northeast | Partly Cloudy | |
| 2pm | 54°F12°C | 2 mph3 km/h Northeast | Partly Cloudy | |
| 3pm | 55°F13°C | 2 mph3 km/h Northeast | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| November 3 | 55°F13°C | 78°F25°C | 4 mph7 km/h from West | Mostly Clear | Partly Cloudy |
| November 4 | 54°F12°C | 77°F25°C | 4 mph6 km/h from Southwest | Clear | Mostly Clear |
| November 5 | 53°F12°C | 69°F21°C | 4 mph7 km/h from Southwest | Partly Cloudy | Mostly Clear |
| November 6 | 52°F11°C | 72°F22°C | 4 mph6 km/h from Southwest | Clear | Clear |
| November 7 | 54°F12°C | 80°F26°C | 3 mph5 km/h from West | Clear | Clear |
| November 8 | 58°F14°C | 82°F28°C | 3 mph5 km/h from West | Clear | Clear |
| November 9 | 61°F16°C | 83°F28°C | 3 mph5 km/h from West | Mostly Clear | Partly Cloudy |
Yes
Low of 54°F12°C, High of 77°F25°CWind: 4 mph6 km/h
Precipitation: None