No
you don't need a jacket based on the weather in Irvine, CA, USA 1 second ago
70°F21°C & Mostly Clear
Wind is 3 mph5 km/h from the Southwest, gusting to 7 mph11 km/h
| September 11 | ||||
| 12am | 69°F21°C | 3 mph5 km/h Southwest | Mostly Clear | |
| 1am | 69°F21°C | 2 mph3 km/h Southwest | Mostly Clear | |
| 2am | 68°F20°C | 2 mph4 km/h Southwest | Clear | |
| 3am | 67°F19°C | 2 mph4 km/h South | Mostly Clear | |
| 4am | 65°F19°C | 3 mph5 km/h Southeast | Mostly Clear | |
| 5am | 65°F18°C | 3 mph5 km/h Southeast | Mostly Clear | |
| 6am | 64°F18°C | 3 mph4 km/h Southeast | Mostly Clear | |
| 7am | 63°F17°C | 3 mph4 km/h Southeast | Partly Cloudy | |
| 8am | 63°F17°C | 3 mph4 km/h Southeast | Mostly Cloudy | |
| 9am | 63°F17°C | 3 mph4 km/h Southeast | Mostly Cloudy | |
| 10am | 64°F18°C | 3 mph4 km/h Southeast | Mostly Cloudy | |
| 11am | 66°F19°C | 3 mph4 km/h Southeast | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 10 | 67°F19°C | 77°F25°C | 5 mph8 km/h from South | Mostly Clear | Mostly Clear |
| September 11 | 63°F17°C | 78°F26°C | 6 mph10 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 12 | 62°F16°C | 78°F26°C | 6 mph9 km/h from Southwest | Mostly Clear | Partly Cloudy |
| September 13 | 63°F17°C | 79°F26°C | 5 mph9 km/h from Southwest | Mostly Clear | Partly Cloudy |
| September 14 | 64°F18°C | 80°F27°C | 5 mph8 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 15 | 64°F18°C | 81°F27°C | 5 mph8 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 16 | 64°F18°C | 85°F29°C | 5 mph7 km/h from Southwest | Mostly Clear | Partly Cloudy |
No
Low of 64°F18°C, High of 78°F26°CWind: 6 mph10 km/h
Precipitation: None