No
you don't need a jacket based on the weather in Ontario, CA 91761, USA 1 second ago
75°F24°C & Clear
Wind is 2 mph4 km/h from the Southwest, gusting to 4 mph7 km/h
| November 3 | ||||
| 9pm | 77°F25°C | 4 mph6 km/h Southwest | Mostly Cloudy | |
| 10pm | 79°F26°C | 5 mph8 km/h Southwest | Mostly Cloudy | |
| 11pm | 79°F26°C | 6 mph9 km/h West | Mostly Cloudy | |
| November 4 | ||||
| 12am | 77°F25°C | 8 mph13 km/h West | Mostly Cloudy | |
| 1am | 71°F22°C | 7 mph12 km/h West | Mostly Cloudy | |
| 2am | 67°F20°C | 5 mph8 km/h West | Mostly Cloudy | |
| 3am | 65°F18°C | 3 mph5 km/h West | Mostly Cloudy | |
| 4am | 63°F17°C | 2 mph4 km/h West | Mostly Cloudy | |
| 5am | 62°F16°C | 2 mph3 km/h Northwest | Mostly Cloudy | |
| 6am | 60°F16°C | 2 mph4 km/h Northwest | Partly Cloudy | |
| 7am | 59°F15°C | 2 mph3 km/h Northwest | Mostly Clear | |
| 8am | 58°F15°C | 2 mph3 km/h Northwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| November 3 | 55°F13°C | 79°F26°C | 4 mph6 km/h from Southwest | Mostly Cloudy | Mostly Clear |
| November 4 | 54°F12°C | 79°F26°C | 3 mph5 km/h from West | Clear | Mostly Clear |
| November 5 | 53°F12°C | 72°F22°C | 4 mph7 km/h from Southwest | Partly Cloudy | Mostly Clear |
| November 6 | 52°F11°C | 73°F23°C | 4 mph6 km/h from Southwest | Clear | Clear |
| November 7 | 53°F12°C | 81°F27°C | 4 mph6 km/h from West | Clear | Clear |
| November 8 | 56°F13°C | 82°F28°C | 4 mph6 km/h from West | Clear | Mostly Clear |
| November 9 | 58°F15°C | 84°F29°C | 3 mph5 km/h from West | Mostly Clear | Mostly Clear |
Yes
Low of 54°F12°C, High of 79°F26°CWind: 3 mph5 km/h
Precipitation: None