Yes
you do need a jacket based on the weather in Rialto, CA, USA 1 second ago
Why? Because just cool enough for a jacket, but not warm enough to ditch it!
54°F12°C & Partly Cloudy
Wind is 2 mph3 km/h from the Southwest, gusting to 7 mph11 km/h
| May 14 | ||||
| 4am | 53°F12°C | 3 mph5 km/h West | Mostly Clear | |
| 5am | 52°F11°C | 3 mph4 km/h Northwest | Mostly Clear | |
| 6am | 52°F11°C | 3 mph5 km/h Northwest | Partly Cloudy | |
| 7am | 52°F11°C | 2 mph4 km/h Northwest | Mostly Cloudy | |
| 8am | 52°F11°C | 2 mph3 km/h West | Partly Cloudy | |
| 9am | 51°F10°C | 1 mph1 km/h West | Mostly Clear | |
| 10am | 53°F11°C | 2 mph2 km/h Northeast | Mostly Clear | |
| 11am | 55°F13°C | 2 mph4 km/h Southeast | Clear | |
| 12pm | 59°F15°C | 3 mph5 km/h Southwest | Clear | |
| 1pm | 63°F17°C | 5 mph7 km/h Southwest | Clear | |
| 2pm | 67°F20°C | 6 mph10 km/h Southwest | Clear | |
| 3pm | 71°F22°C | 7 mph12 km/h Southwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 14 | 51°F10°C | 75°F24°C | 7 mph11 km/h from Southwest | Clear | Clear |
| May 15 | 53°F11°C | 77°F25°C | 6 mph9 km/h from Southwest | Clear | Clear |
| May 16 | 54°F12°C | 74°F23°C | 6 mph9 km/h from Southwest | Mostly Cloudy | Mostly Cloudy |
| May 17 | 54°F12°C | 66°F19°C | 5 mph9 km/h from Southwest | Mostly Cloudy | Drizzle |
| May 18 | 52°F11°C | 68°F20°C | 5 mph9 km/h from Southwest | Partly Cloudy | Mostly Clear |
| May 19 | 52°F11°C | 84°F29°C | 6 mph10 km/h from Northwest | Clear | Clear |
| May 20 | 58°F15°C | 87°F31°C | 6 mph10 km/h from West | Clear | Clear |
Yes
Low of 53°F12°C, High of 77°F25°CWind: 6 mph9 km/h
Precipitation: None