Yes
you do need a jacket based on the weather in Upland, CA, USA 1 second ago
Why? Because it's not very warm out!
57°F14°C & Mostly Clear
Wind is 6 mph9 km/h from the West, gusting to 12 mph20 km/h
| May 2 | ||||
| 3am | 56°F13°C | 5 mph8 km/h West | Clear | |
| 4am | 55°F13°C | 4 mph7 km/h West | Clear | |
| 5am | 54°F12°C | 3 mph5 km/h West | Mostly Clear | |
| 6am | 53°F12°C | 2 mph4 km/h West | Partly Cloudy | |
| 7am | 53°F11°C | 3 mph5 km/h West | Mostly Cloudy | |
| 8am | 52°F11°C | 2 mph4 km/h West | Mostly Cloudy | |
| 9am | 53°F12°C | 2 mph3 km/h West | Mostly Cloudy | |
| 10am | 54°F12°C | 2 mph3 km/h West | Mostly Cloudy | |
| 11am | 56°F13°C | 2 mph4 km/h Southwest | Mostly Cloudy | |
| 12pm | 58°F14°C | 3 mph5 km/h Southwest | Partly Cloudy | |
| 1pm | 61°F16°C | 4 mph6 km/h Southwest | Partly Cloudy | |
| 2pm | 65°F18°C | 5 mph8 km/h Southwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 1 | 53°F12°C | 70°F21°C | 5 mph9 km/h from Southwest | Partly Cloudy | Mostly Clear |
| May 2 | 52°F11°C | 77°F25°C | 6 mph10 km/h from Southwest | Mostly Clear | Mostly Clear |
| May 3 | 54°F12°C | 70°F21°C | 6 mph10 km/h from Southwest | Mostly Cloudy | Mostly Cloudy |
| May 4 | 50°F10°C | 60°F15°C | 5 mph9 km/h from South | Cloudy | Drizzle |
| May 5 | 51°F11°C | 60°F16°C | 3 mph5 km/h from Southwest | Cloudy | Mostly Cloudy |
| May 6 | 52°F11°C | 68°F20°C | 5 mph8 km/h from Southwest | Partly Cloudy | Mostly Clear |
| May 7 | 53°F12°C | 76°F25°C | 5 mph8 km/h from Southwest | Mostly Clear | Clear |
Yes
Low of 53°F12°C, High of 77°F25°CWind: 6 mph10 km/h
Precipitation: None