Yes
you do need a jacket based on the weather in Ontario, CA, USA 1 second ago
Why? Because it's not very warm out.
56°F13°C & Cloudy
Wind is 4 mph7 km/h from the SW, gusting to 11 mph17 km/h
| April 25 | ||||
| 1pm | 56°F13°C | 5 mph8 km/h SW | Cloudy | |
| 2pm | 56°F14°C | 5 mph9 km/h SW | Cloudy | |
| 3pm | 58°F15°C | 6 mph10 km/h SW | Mostly Cloudy | |
| 4pm | 60°F16°C | 7 mph11 km/h SW | Mostly Cloudy | |
| 5pm | 62°F16°C | 8 mph14 km/h SW | Mostly Cloudy | |
| 6pm | 62°F17°C | 9 mph15 km/h SW | Mostly Cloudy | |
| 7pm | 62°F17°C | 10 mph16 km/h SW | Mostly Cloudy | |
| 8pm | 61°F16°C | 10 mph16 km/h SW | Mostly Cloudy | |
| 9pm | 60°F15°C | 10 mph16 km/h SW | Mostly Cloudy | |
| 10pm | 58°F14°C | 9 mph14 km/h SW | Mostly Cloudy | |
| 11pm | 57°F14°C | 7 mph12 km/h SW | Mostly Cloudy | |
| April 26 | ||||
| 12am | 56°F13°C | 7 mph11 km/h SW | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 25 | 52°F11°C | 62°F17°C | 7 mph12 km/h from SW | Mostly Cloudy | Mostly Cloudy |
| April 26 | 51°F11°C | 66°F19°C | 9 mph14 km/h from SW | Mostly Cloudy | Mostly Clear |
| April 27 | 50°F10°C | 69°F21°C | 6 mph10 km/h from SW | Mostly Clear | Clear |
| April 28 | 51°F11°C | 74°F24°C | 6 mph9 km/h from SW | Clear | Clear |
| April 29 | 56°F13°C | 79°F26°C | 5 mph8 km/h from W | Clear | Clear |
| April 30 | 57°F14°C | 79°F26°C | 7 mph11 km/h from W | Clear | Mostly Clear |
| May 1 | 54°F12°C | 78°F25°C | 6 mph10 km/h from SW | Mostly Clear | Mostly Clear |
Yes
Low of 51°F11°C, High of 66°F19°CWind: 9 mph14 km/h
Precipitation: 11% rain