No
you don't need a jacket based on the weather in Rancho Cucamonga, CA, USA 14 minutes ago
70°F21°C & Mostly Clear
Wind is 5 mph8 km/h from the Southwest, gusting to 6 mph10 km/h
| April 30 | ||||
| 4pm | 71°F22°C | 6 mph9 km/h Southwest | Mostly Cloudy | |
| 5pm | 73°F23°C | 8 mph12 km/h Southwest | Mostly Cloudy | |
| 6pm | 75°F24°C | 9 mph14 km/h Southwest | Mostly Cloudy | |
| 7pm | 75°F24°C | 10 mph17 km/h West | Mostly Clear | |
| 8pm | 74°F23°C | 11 mph18 km/h West | Clear | |
| 9pm | 72°F22°C | 11 mph18 km/h West | Clear | |
| 10pm | 68°F20°C | 10 mph16 km/h West | Clear | |
| 11pm | 64°F18°C | 7 mph11 km/h West | Clear | |
| May 1 | ||||
| 12am | 61°F16°C | 4 mph7 km/h West | Mostly Clear | |
| 1am | 59°F15°C | 3 mph5 km/h West | Mostly Clear | |
| 2am | 57°F14°C | 3 mph5 km/h West | Mostly Clear | |
| 3am | 56°F13°C | 3 mph5 km/h West | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 30 | 52°F11°C | 75°F24°C | 6 mph9 km/h from Southwest | Mostly Cloudy | Partly Cloudy |
| May 1 | 53°F11°C | 73°F23°C | 6 mph9 km/h from Southwest | Partly Cloudy | Mostly Clear |
| May 2 | 53°F12°C | 77°F25°C | 6 mph10 km/h from Southwest | Mostly Clear | Mostly Clear |
| May 3 | 54°F12°C | 68°F20°C | 6 mph10 km/h from Southwest | Mostly Cloudy | Cloudy |
| May 4 | 50°F10°C | 59°F15°C | 5 mph7 km/h from South | Drizzle | Cloudy |
| May 5 | 51°F11°C | 60°F16°C | 4 mph6 km/h from Southwest | Cloudy | Partly Cloudy |
| May 6 | 52°F11°C | 69°F20°C | 5 mph8 km/h from Southwest | Partly Cloudy | Mostly Clear |
Yes
Low of 53°F12°C, High of 73°F23°CWind: 6 mph9 km/h
Precipitation: None