No
you don't need a jacket based on the weather in Fullerton, CA, USA 1 second ago
66°F19°C & Cloudy
Wind is 1 mph2 km/h from the Southeast, gusting to 3 mph5 km/h
| August 13 | ||||
| 10am | 66°F19°C | 1 mph2 km/h Southeast | Mostly Cloudy | |
| 11am | 67°F19°C | 1 mph2 km/h Southwest | Mostly Cloudy | |
| 12pm | 70°F21°C | 2 mph3 km/h Southwest | Partly Cloudy | |
| 1pm | 73°F23°C | 3 mph5 km/h Southwest | Mostly Clear | |
| 2pm | 77°F25°C | 5 mph8 km/h Southwest | Clear | |
| 3pm | 81°F27°C | 6 mph10 km/h Southwest | Clear | |
| 4pm | 83°F28°C | 8 mph13 km/h Southwest | Clear | |
| 5pm | 84°F29°C | 8 mph13 km/h Southwest | Clear | |
| 6pm | 85°F29°C | 8 mph13 km/h Southwest | Clear | |
| 7pm | 84°F29°C | 8 mph13 km/h Southwest | Clear | |
| 8pm | 83°F28°C | 8 mph13 km/h Southwest | Clear | |
| 9pm | 81°F27°C | 7 mph12 km/h Southwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 13 | 66°F19°C | 85°F29°C | 6 mph9 km/h from Southwest | Mostly Clear | Mostly Clear |
| August 14 | 65°F18°C | 84°F29°C | 6 mph9 km/h from Southwest | Mostly Clear | Mostly Clear |
| August 15 | 64°F18°C | 80°F27°C | 6 mph10 km/h from Southwest | Mostly Clear | Mostly Clear |
| August 16 | 63°F17°C | 80°F27°C | 6 mph10 km/h from Southwest | Clear | Mostly Clear |
| August 17 | 63°F17°C | 82°F28°C | 6 mph9 km/h from Southwest | Mostly Clear | Mostly Clear |
| August 18 | 64°F18°C | 84°F29°C | 6 mph9 km/h from Southwest | Mostly Clear | Mostly Clear |
| August 19 | 65°F18°C | 86°F30°C | 5 mph8 km/h from Southwest | Mostly Clear | Clear |
No
Low of 64°F18°C, High of 84°F29°CWind: 6 mph9 km/h
Precipitation: None