No
you don't need a jacket based on the weather in Santa Ana, CA, USA 1 second ago
70°F21°C & Mostly Clear
Wind is 1 mph2 km/h from the Southwest, gusting to 2 mph4 km/h
| September 16 | ||||
| 4am | 69°F20°C | 2 mph3 km/h Southwest | Mostly Clear | |
| 5am | 68°F20°C | 2 mph3 km/h Northwest | Partly Cloudy | |
| 6am | 67°F19°C | 1 mph1 km/h North | Partly Cloudy | |
| 7am | 67°F19°C | 1 mph2 km/h West | Mostly Clear | |
| 8am | 66°F19°C | 2 mph3 km/h North | Mostly Clear | |
| 9am | 65°F19°C | 2 mph3 km/h Northwest | Partly Cloudy | |
| 10am | 66°F19°C | 2 mph3 km/h Northeast | Mostly Clear | |
| 11am | 68°F20°C | 1 mph2 km/h Northeast | Mostly Clear | |
| 12pm | 73°F23°C | 2 mph3 km/h West | Clear | |
| 1pm | 77°F25°C | 3 mph4 km/h West | Clear | |
| 2pm | 82°F28°C | 4 mph6 km/h West | Clear | |
| 3pm | 86°F30°C | 5 mph8 km/h West | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 16 | 65°F19°C | 90°F32°C | 5 mph8 km/h from Southwest | Clear | Mostly Clear |
| September 17 | 68°F20°C | 84°F29°C | 5 mph8 km/h from Southwest | Mostly Cloudy | Rain |
| September 18 | 70°F21°C | 80°F27°C | 4 mph7 km/h from Southwest | Drizzle | Drizzle |
| September 19 | 68°F20°C | 83°F28°C | 5 mph7 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 20 | 67°F20°C | 86°F30°C | 5 mph8 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 21 | 68°F20°C | 85°F30°C | 4 mph7 km/h from West | Mostly Clear | Partly Cloudy |
| September 22 | 69°F21°C | 85°F29°C | 5 mph7 km/h from Southwest | Mostly Clear | Mostly Clear |
No
Low of 68°F20°C, High of 84°F29°CWind: 5 mph8 km/h
Precipitation: 34% rain