No
you don't need a jacket based on the weather in Santa Ana, CA, USA 1 second ago
82°F28°C & Clear
Wind is 4 mph6 km/h from the West, gusting to 9 mph15 km/h
| September 16 | ||||
| 11pm | 81°F27°C | 4 mph7 km/h Northwest | Clear | |
| September 17 | ||||
| 12am | 78°F26°C | 3 mph4 km/h Southwest | Mostly Clear | |
| 1am | 77°F25°C | 2 mph4 km/h South | Mostly Clear | |
| 2am | 75°F24°C | 3 mph5 km/h South | Mostly Clear | |
| 3am | 74°F23°C | 2 mph3 km/h Southwest | Clear | |
| 4am | 73°F23°C | 1 mph2 km/h West | Mostly Clear | |
| 5am | 72°F22°C | 2 mph3 km/h Southwest | Mostly Clear | |
| 6am | 70°F21°C | 1 mph2 km/h South | Partly Cloudy | |
| 7am | 69°F21°C | 2 mph2 km/h Southwest | Partly Cloudy | |
| 8am | 69°F20°C | 1 mph2 km/h West | Mostly Cloudy | |
| 9am | 69°F20°C | 1 mph1 km/h Southwest | Mostly Cloudy | |
| 10am | 68°F20°C | 1 mph2 km/h South | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 16 | 65°F18°C | 91°F33°C | 3 mph5 km/h from Southwest | Clear | Mostly Clear |
| September 17 | 68°F20°C | 82°F28°C | 5 mph8 km/h from Southwest | Cloudy | Rain |
| September 18 | 69°F20°C | 84°F29°C | 5 mph7 km/h from Southwest | Drizzle | Drizzle |
| September 19 | 69°F20°C | 83°F29°C | 5 mph8 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 20 | 66°F19°C | 86°F30°C | 5 mph7 km/h from West | Mostly Clear | Mostly Clear |
| September 21 | 67°F19°C | 84°F29°C | 4 mph6 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| September 22 | 69°F20°C | 84°F29°C | 4 mph6 km/h from Southwest | Partly Cloudy | Mostly Clear |
No
Low of 68°F20°C, High of 82°F28°CWind: 5 mph8 km/h
Precipitation: None