No
you don't need a jacket based on the weather in Placentia, CA 92870, USA 1 second ago
82°F28°C & Partly Cloudy
Wind is 7 mph11 km/h from the South, gusting to 12 mph20 km/h
| September 18 | ||||
| 3pm | 82°F28°C | 8 mph13 km/h South | Mostly Cloudy | |
| 4pm | 82°F28°C | 9 mph15 km/h Southwest | Thunderstorms | |
| 5pm | 84°F29°C | 8 mph12 km/h Southwest | Thunderstorms | |
| 6pm | 85°F29°C | 8 mph13 km/h Southwest | Mostly Clear | |
| 7pm | 84°F29°C | 8 mph13 km/h Southwest | Mostly Clear | |
| 8pm | 83°F28°C | 8 mph13 km/h Southwest | Mostly Clear | |
| 9pm | 80°F27°C | 7 mph11 km/h Southwest | Mostly Clear | |
| 10pm | 77°F25°C | 5 mph8 km/h Southwest | Partly Cloudy | |
| 11pm | 75°F24°C | 4 mph6 km/h Southwest | Partly Cloudy | |
| September 19 | ||||
| 12am | 73°F23°C | 3 mph5 km/h Southwest | Partly Cloudy | |
| 1am | 72°F22°C | 2 mph3 km/h Southwest | Partly Cloudy | |
| 2am | 72°F22°C | 2 mph3 km/h Southwest | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 69°F21°C | 85°F29°C | 6 mph10 km/h from Southwest | Thunderstorms | Partly Cloudy |
| September 19 | 68°F20°C | 84°F29°C | 5 mph8 km/h from Southwest | Mostly Clear | Clear |
| September 20 | 66°F19°C | 87°F31°C | 5 mph8 km/h from Southwest | Clear | Clear |
| September 21 | 65°F18°C | 86°F30°C | 5 mph8 km/h from Southwest | Mostly Clear | Partly Cloudy |
| September 22 | 68°F20°C | 91°F33°C | 5 mph9 km/h from West | Mostly Clear | Clear |
| September 23 | 68°F20°C | 93°F34°C | 5 mph8 km/h from Southwest | Clear | Mostly Clear |
| September 24 | 67°F20°C | 90°F32°C | 5 mph7 km/h from Southwest | Clear | Clear |
No
Low of 67°F20°C, High of 84°F29°CWind: 5 mph8 km/h
Precipitation: None