No
you don't need a jacket based on the weather in Fontana, CA 92336, USA 1 second ago
66°F19°C & Cloudy
Wind is 2 mph3 km/h from the Northeast, gusting to 3 mph5 km/h
| September 22 | ||||
| 11am | 68°F20°C | 2 mph3 km/h East | Mostly Cloudy | |
| 12pm | 70°F21°C | 3 mph5 km/h Southeast | Mostly Cloudy | |
| 1pm | 73°F23°C | 3 mph4 km/h South | Mostly Cloudy | |
| 2pm | 77°F25°C | 3 mph5 km/h Southeast | Partly Cloudy | |
| 3pm | 82°F28°C | 4 mph6 km/h Southwest | Clear | |
| 4pm | 84°F29°C | 6 mph9 km/h Southwest | Mostly Clear | |
| 5pm | 86°F30°C | 7 mph11 km/h Southwest | Mostly Clear | |
| 6pm | 87°F31°C | 7 mph11 km/h Southwest | Mostly Clear | |
| 7pm | 87°F30°C | 6 mph10 km/h Southwest | Mostly Clear | |
| 8pm | 86°F30°C | 6 mph10 km/h Southwest | Mostly Clear | |
| 9pm | 83°F29°C | 7 mph11 km/h Southwest | Mostly Clear | |
| 10pm | 80°F27°C | 5 mph7 km/h West | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 22 | 64°F18°C | 87°F31°C | 5 mph8 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 23 | 70°F21°C | 93°F34°C | 4 mph7 km/h from Southwest | Clear | Clear |
| September 24 | 69°F20°C | 86°F30°C | 6 mph9 km/h from Southwest | Clear | Clear |
| September 25 | 63°F17°C | 81°F27°C | 5 mph8 km/h from Southwest | Clear | Mostly Clear |
| September 26 | 61°F16°C | 77°F25°C | 4 mph6 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| September 27 | 62°F17°C | 79°F26°C | 4 mph7 km/h from Southwest | Mostly Clear | Clear |
| September 28 | 62°F17°C | 82°F28°C | 4 mph7 km/h from Southwest | Clear | Clear |
No
Low of 70°F21°C, High of 92°F34°CWind: 4 mph7 km/h
Precipitation: None