Yes
you do need a jacket based on the weather in San Bernardino, CA, USA 1 second ago
Why? Because just cool enough for a jacket, but not warm enough to ditch it!
53°F12°C & Cloudy
Wind is 4 mph6 km/h from the Southwest, gusting to 12 mph20 km/h
| March 1 | ||||
| 4am | 53°F11°C | 2 mph4 km/h South | Cloudy | |
| 5am | 52°F11°C | 3 mph5 km/h Southwest | Cloudy | |
| 6am | 52°F11°C | 2 mph3 km/h Southwest | Cloudy | |
| 7am | 52°F11°C | 3 mph5 km/h Southwest | Cloudy | |
| 8am | 51°F11°C | 3 mph4 km/h Southwest | Cloudy | |
| 9am | 51°F11°C | 3 mph5 km/h West | Cloudy | |
| 10am | 50°F10°C | 2 mph4 km/h West | Cloudy | |
| 11am | 51°F11°C | 2 mph4 km/h West | Cloudy | |
| 12pm | 53°F12°C | 3 mph5 km/h Southwest | Cloudy | |
| 1pm | 55°F13°C | 4 mph7 km/h Southwest | Cloudy | |
| 2pm | 57°F14°C | 3 mph6 km/h Southwest | Cloudy | |
| 3pm | 60°F15°C | 4 mph6 km/h Southwest | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| March 1 | 50°F10°C | 64°F18°C | 5 mph8 km/h from Southwest | Mostly Cloudy | Cloudy |
| March 2 | 45°F7°C | 57°F14°C | 8 mph12 km/h from Southwest | Rain | Rain |
| March 3 | 44°F6°C | 56°F14°C | 5 mph8 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| March 4 | 42°F5°C | 59°F15°C | 3 mph5 km/h from Southwest | Partly Cloudy | Mostly Cloudy |
| March 5 | 46°F8°C | 58°F15°C | 3 mph5 km/h from Southwest | Mostly Cloudy | Rain |
| March 6 | 43°F6°C | 57°F14°C | 5 mph9 km/h from Southwest | Partly Cloudy | Clear |
| March 7 | 40°F4°C | 64°F18°C | 4 mph6 km/h from Southwest | Clear | Clear |
Yes
Low of 45°F7°C, High of 57°F14°CWind: 8 mph12 km/h
Precipitation: 32% rain