No
you don't need a jacket based on the weather in Irvine (University Town Center), California, United States 1 second ago
70°F21°C & Cloudy
Wind is 3 mph5 km/h from the Southeast, gusting to 4 mph7 km/h
| September 18 | ||||
| 11am | 71°F21°C | 3 mph6 km/h Southeast | Mostly Clear | |
| 12pm | 74°F23°C | 2 mph4 km/h East | Mostly Clear | |
| 1pm | 76°F24°C | 2 mph3 km/h South | Partly Cloudy | |
| 2pm | 79°F26°C | 4 mph7 km/h Southwest | Mostly Clear | |
| 3pm | 82°F28°C | 7 mph11 km/h South | Mostly Clear | |
| 4pm | 82°F28°C | 8 mph13 km/h Southwest | Mostly Clear | |
| 5pm | 82°F28°C | 9 mph14 km/h Southwest | Mostly Clear | |
| 6pm | 81°F27°C | 8 mph13 km/h Southwest | Mostly Clear | |
| 7pm | 80°F27°C | 7 mph12 km/h Southwest | Mostly Clear | |
| 8pm | 78°F26°C | 7 mph11 km/h Southwest | Mostly Clear | |
| 9pm | 76°F24°C | 6 mph9 km/h Southwest | Mostly Clear | |
| 10pm | 74°F23°C | 4 mph6 km/h Southwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 68°F20°C | 82°F28°C | 6 mph9 km/h from Southwest | Thunderstorms | Partly Cloudy |
| September 19 | 67°F20°C | 81°F27°C | 5 mph8 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 20 | 66°F19°C | 82°F28°C | 5 mph8 km/h from West | Mostly Clear | Mostly Clear |
| September 21 | 65°F19°C | 81°F27°C | 5 mph8 km/h from Southwest | Mostly Clear | Partly Cloudy |
| September 22 | 66°F19°C | 83°F28°C | 5 mph8 km/h from West | Mostly Clear | Clear |
| September 23 | 67°F20°C | 83°F28°C | 5 mph8 km/h from West | Mostly Clear | Clear |
| September 24 | 67°F19°C | 82°F28°C | 5 mph8 km/h from West | Clear | Clear |
No
Low of 67°F20°C, High of 81°F27°CWind: 5 mph8 km/h
Precipitation: None