No
you don't need a jacket based on the weather in Santa Ana, CA, USA 1 second ago
67°F20°C & Cloudy
Wind is 1 mph2 km/h from the North, gusting to 4 mph6 km/h
| September 15 | ||||
| 12pm | 68°F20°C | 2 mph3 km/h Northwest | Partly Cloudy | |
| 1pm | 72°F22°C | 2 mph3 km/h West | Mostly Clear | |
| 2pm | 77°F25°C | 3 mph5 km/h Southwest | Clear | |
| 3pm | 80°F27°C | 5 mph9 km/h Southwest | Clear | |
| 4pm | 82°F28°C | 7 mph11 km/h Southwest | Clear | |
| 5pm | 83°F28°C | 7 mph12 km/h Southwest | Clear | |
| 6pm | 83°F29°C | 7 mph12 km/h Southwest | Clear | |
| 7pm | 83°F28°C | 7 mph11 km/h Southwest | Clear | |
| 8pm | 81°F27°C | 6 mph10 km/h Southwest | Clear | |
| 9pm | 79°F26°C | 5 mph8 km/h Southwest | Clear | |
| 10pm | 75°F24°C | 4 mph6 km/h Southwest | Clear | |
| 11pm | 73°F23°C | 3 mph5 km/h Southwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 15 | 66°F19°C | 83°F29°C | 5 mph7 km/h from Southwest | Mostly Clear | Clear |
| September 16 | 65°F19°C | 89°F32°C | 5 mph8 km/h from Southwest | Clear | Partly Cloudy |
| September 17 | 68°F20°C | 84°F29°C | 5 mph8 km/h from Southwest | Mostly Cloudy | Thunderstorms |
| September 18 | 69°F21°C | 83°F29°C | 5 mph7 km/h from Southwest | Drizzle | Partly Cloudy |
| September 19 | 68°F20°C | 84°F29°C | 5 mph9 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 20 | 68°F20°C | 86°F30°C | 5 mph8 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 21 | 67°F20°C | 84°F29°C | 5 mph7 km/h from Southwest | Mostly Clear | Partly Cloudy |
No
Low of 65°F19°C, High of 89°F32°CWind: 5 mph8 km/h
Precipitation: None