No
you don't need a jacket based on the weather in Irvine (Orange County Great Park), California, United States 1 second ago
90°F32°C & Clear
Wind is 7 mph11 km/h from the West, gusting to 9 mph15 km/h
| September 16 | ||||
| 4pm | 90°F32°C | 8 mph12 km/h West | Clear | |
| 5pm | 90°F32°C | 9 mph14 km/h West | Clear | |
| 6pm | 90°F32°C | 8 mph13 km/h West | Clear | |
| 7pm | 89°F32°C | 7 mph12 km/h West | Clear | |
| 8pm | 87°F31°C | 7 mph11 km/h West | Clear | |
| 9pm | 85°F30°C | 5 mph8 km/h West | Clear | |
| 10pm | 82°F28°C | 4 mph7 km/h West | Clear | |
| 11pm | 78°F26°C | 3 mph4 km/h Southwest | Clear | |
| September 17 | ||||
| 12am | 77°F25°C | 2 mph3 km/h Southwest | Mostly Clear | |
| 1am | 75°F24°C | 2 mph3 km/h West | Mostly Clear | |
| 2am | 73°F23°C | 2 mph3 km/h West | Partly Cloudy | |
| 3am | 73°F23°C | 2 mph3 km/h Northwest | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 16 | 64°F18°C | 90°F32°C | 5 mph8 km/h from West | Clear | Mostly Clear |
| September 17 | 68°F20°C | 84°F29°C | 5 mph7 km/h from Southwest | Cloudy | Rain |
| September 18 | 68°F20°C | 83°F28°C | 4 mph7 km/h from Southwest | Rain | Mostly Clear |
| September 19 | 67°F20°C | 84°F29°C | 5 mph7 km/h from Southwest | Mostly Clear | Clear |
| September 20 | 67°F20°C | 87°F31°C | 5 mph7 km/h from West | Mostly Clear | Mostly Clear |
| September 21 | 68°F20°C | 86°F30°C | 4 mph7 km/h from West | Partly Cloudy | Partly Cloudy |
| September 22 | 70°F21°C | 87°F30°C | 4 mph6 km/h from West | Partly Cloudy | Mostly Clear |
No
Low of 68°F20°C, High of 84°F29°CWind: 5 mph7 km/h
Precipitation: None