No
you don't need a jacket based on the weather in Irvine (Orange County Great Park), California, United States 1 second ago
78°F25°C & Clear
Wind is 7 mph11 km/h from the W, gusting to 12 mph19 km/h
| September 24 | ||||
| 5pm | 78°F26°C | 7 mph12 km/h W | Clear | |
| 6pm | 79°F26°C | 7 mph12 km/h W | Clear | |
| 7pm | 78°F26°C | 7 mph11 km/h W | Clear | |
| 8pm | 76°F25°C | 6 mph10 km/h W | Clear | |
| 9pm | 74°F23°C | 5 mph8 km/h W | Clear | |
| 10pm | 70°F21°C | 4 mph6 km/h SW | Clear | |
| 11pm | 66°F19°C | 3 mph4 km/h SW | Clear | |
| September 25 | ||||
| 12am | 64°F18°C | 3 mph4 km/h S | Clear | |
| 1am | 63°F17°C | 3 mph4 km/h S | Mostly Clear | |
| 2am | 62°F17°C | 2 mph4 km/h SE | Mostly Clear | |
| 3am | 61°F16°C | 2 mph4 km/h SE | Mostly Clear | |
| 4am | 61°F16°C | 2 mph4 km/h SE | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 24 | 57°F14°C | 79°F26°C | 5 mph7 km/h from W | Mostly Clear | Mostly Clear |
| September 25 | 58°F14°C | 79°F26°C | 5 mph7 km/h from W | Mostly Clear | Clear |
| September 26 | 55°F13°C | 82°F28°C | 4 mph7 km/h from SW | Mostly Clear | Mostly Clear |
| September 27 | 58°F14°C | 83°F29°C | 4 mph7 km/h from SW | Mostly Clear | Clear |
| September 28 | 60°F15°C | 79°F26°C | 5 mph8 km/h from SW | Clear | Mostly Clear |
| September 29 | 58°F14°C | 75°F24°C | 6 mph10 km/h from S | Mostly Clear | Partly Cloudy |
| September 30 | 59°F15°C | 69°F20°C | 7 mph12 km/h from SW | Partly Cloudy | Partly Cloudy |
Yes
Low of 58°F15°C, High of 79°F26°CWind: 5 mph7 km/h
Precipitation: None