No
you don't need a jacket based on the weather in San Dimas, CA, USA 1 second ago
72°F22°C & Mostly Cloudy
Wind is 2 mph4 km/h from the Southwest, gusting to 4 mph7 km/h
| August 14 | ||||
| 1pm | 74°F23°C | 3 mph4 km/h Southwest | Clear | |
| 2pm | 78°F26°C | 4 mph7 km/h Southwest | Clear | |
| 3pm | 81°F27°C | 6 mph10 km/h Southwest | Clear | |
| 4pm | 84°F29°C | 7 mph12 km/h West | Clear | |
| 5pm | 86°F30°C | 9 mph14 km/h Southwest | Clear | |
| 6pm | 86°F30°C | 9 mph15 km/h Southwest | Clear | |
| 7pm | 86°F30°C | 9 mph15 km/h Southwest | Clear | |
| 8pm | 84°F29°C | 8 mph13 km/h Southwest | Clear | |
| 9pm | 81°F27°C | 7 mph11 km/h Southwest | Clear | |
| 10pm | 78°F26°C | 5 mph9 km/h Southwest | Clear | |
| 11pm | 75°F24°C | 4 mph6 km/h Southwest | Clear | |
| August 15 | ||||
| 12am | 72°F22°C | 3 mph4 km/h Southwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 14 | 64°F18°C | 86°F30°C | 6 mph9 km/h from Southwest | Clear | Mostly Clear |
| August 15 | 63°F17°C | 84°F29°C | 5 mph9 km/h from Southwest | Clear | Clear |
| August 16 | 62°F16°C | 83°F28°C | 5 mph9 km/h from Southwest | Clear | Mostly Clear |
| August 17 | 62°F17°C | 86°F30°C | 5 mph8 km/h from Southwest | Clear | Clear |
| August 18 | 63°F17°C | 88°F31°C | 5 mph8 km/h from Southwest | Clear | Clear |
| August 19 | 66°F19°C | 91°F33°C | 5 mph8 km/h from Southwest | Clear | Clear |
| August 20 | 69°F20°C | 91°F33°C | 5 mph8 km/h from Southwest | Mostly Clear | Mostly Clear |
No
Low of 64°F18°C, High of 84°F29°CWind: 5 mph9 km/h
Precipitation: None