No
you don't need a jacket based on the weather in Ontario, CA, USA 1 second ago
87°F31°C & Clear
Wind is 3 mph5 km/h from the Southwest, gusting to 4 mph7 km/h
| August 6 | ||||
| 2pm | 89°F32°C | 4 mph6 km/h Southwest | Clear | |
| 3pm | 93°F34°C | 5 mph8 km/h Southwest | Clear | |
| 4pm | 96°F36°C | 7 mph11 km/h West | Clear | |
| 5pm | 98°F37°C | 8 mph13 km/h West | Clear | |
| 6pm | 98°F37°C | 10 mph15 km/h West | Mostly Clear | |
| 7pm | 97°F36°C | 11 mph17 km/h West | Clear | |
| 8pm | 96°F35°C | 11 mph17 km/h West | Clear | |
| 9pm | 92°F33°C | 9 mph15 km/h West | Mostly Clear | |
| 10pm | 89°F32°C | 8 mph13 km/h West | Mostly Clear | |
| 11pm | 85°F29°C | 6 mph10 km/h West | Mostly Clear | |
| August 7 | ||||
| 12am | 81°F27°C | 5 mph7 km/h West | Mostly Clear | |
| 1am | 79°F26°C | 3 mph4 km/h West | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 6 | 66°F19°C | 98°F37°C | 6 mph10 km/h from Southwest | Clear | Mostly Clear |
| August 7 | 71°F22°C | 98°F37°C | 6 mph9 km/h from Southwest | Clear | Clear |
| August 8 | 73°F23°C | 96°F36°C | 6 mph10 km/h from Southwest | Clear | Clear |
| August 9 | 70°F21°C | 95°F35°C | 6 mph10 km/h from Southwest | Clear | Mostly Clear |
| August 10 | 70°F21°C | 94°F35°C | 6 mph10 km/h from Southwest | Clear | Clear |
| August 11 | 71°F22°C | 94°F34°C | 6 mph9 km/h from Southwest | Clear | Clear |
| August 12 | 71°F22°C | 92°F33°C | 6 mph9 km/h from Southwest | Clear | Clear |
No
Low of 71°F22°C, High of 98°F37°CWind: 6 mph9 km/h
Precipitation: None