No
you don't need a jacket based on the weather in Tustin, CA, USA 1 second ago
72°F22°C & Clear
Wind is 4 mph6 km/h from the South, gusting to 6 mph10 km/h
| August 18 | ||||
| 12am | 71°F21°C | 3 mph5 km/h South | Clear | |
| 1am | 69°F21°C | 3 mph5 km/h South | Clear | |
| 2am | 68°F20°C | 3 mph5 km/h South | Mostly Clear | |
| 3am | 67°F19°C | 2 mph4 km/h South | Mostly Clear | |
| 4am | 67°F19°C | 2 mph4 km/h South | Partly Cloudy | |
| 5am | 66°F19°C | 3 mph5 km/h South | Mostly Cloudy | |
| 6am | 66°F19°C | 3 mph5 km/h Southeast | Mostly Cloudy | |
| 7am | 65°F18°C | 2 mph4 km/h Southeast | Partly Cloudy | |
| 8am | 65°F18°C | 2 mph3 km/h Southeast | Mostly Cloudy | |
| 9am | 64°F18°C | 2 mph3 km/h East | Mostly Cloudy | |
| 10am | 64°F18°C | 2 mph3 km/h Southeast | Mostly Cloudy | |
| 11am | 66°F19°C | 2 mph3 km/h Southeast | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 17 | 66°F19°C | 81°F27°C | 3 mph5 km/h from Southwest | Mostly Clear | Partly Cloudy |
| August 18 | 64°F18°C | 84°F29°C | 5 mph8 km/h from Southwest | Mostly Clear | Mostly Clear |
| August 19 | 64°F18°C | 86°F30°C | 5 mph8 km/h from Southwest | Clear | Clear |
| August 20 | 64°F18°C | 86°F30°C | 5 mph8 km/h from Southwest | Mostly Clear | Mostly Clear |
| August 21 | 68°F20°C | 89°F32°C | 5 mph8 km/h from Southwest | Clear | Mostly Clear |
| August 22 | 68°F20°C | 88°F31°C | 5 mph8 km/h from Southwest | Mostly Clear | Mostly Clear |
| August 23 | 69°F20°C | 87°F31°C | 5 mph8 km/h from Southwest | Mostly Clear | Partly Cloudy |
No
Low of 64°F18°C, High of 83°F29°CWind: 5 mph8 km/h
Precipitation: None