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!
56°F14°C & Mostly Cloudy
Wind is 4 mph7 km/h from the Southwest, gusting to 9 mph15 km/h
| May 4 | ||||
| 3am | 56°F13°C | 2 mph4 km/h Southwest | Cloudy | |
| 4am | 55°F13°C | 3 mph5 km/h Southwest | Cloudy | |
| 5am | 55°F13°C | 3 mph5 km/h South | Drizzle | |
| 6am | 55°F13°C | 3 mph5 km/h Southwest | Cloudy | |
| 7am | 54°F12°C | 2 mph4 km/h Southwest | Cloudy | |
| 8am | 54°F12°C | 2 mph4 km/h Southwest | Cloudy | |
| 9am | 54°F12°C | 3 mph4 km/h Southwest | Cloudy | |
| 10am | 53°F12°C | 4 mph6 km/h Southwest | Cloudy | |
| 11am | 53°F12°C | 3 mph5 km/h South | Cloudy | |
| 12pm | 54°F12°C | 4 mph6 km/h South | Cloudy | |
| 1pm | 54°F12°C | 4 mph6 km/h South | Cloudy | |
| 2pm | 55°F13°C | 4 mph7 km/h South | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 3 | 56°F13°C | 67°F19°C | 3 mph4 km/h from Southwest | Cloudy | Drizzle |
| May 4 | 53°F12°C | 60°F16°C | 4 mph7 km/h from Southwest | Drizzle | Drizzle |
| May 5 | 53°F12°C | 65°F19°C | 4 mph6 km/h from Southwest | Cloudy | Mostly Cloudy |
| May 6 | 53°F12°C | 72°F22°C | 4 mph7 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| May 7 | 55°F13°C | 78°F25°C | 4 mph6 km/h from Southwest | Mostly Clear | Clear |
| May 8 | 59°F15°C | 85°F30°C | 4 mph7 km/h from Southwest | Mostly Clear | Mostly Clear |
| May 9 | 64°F18°C | 89°F32°C | 4 mph7 km/h from Southwest | Mostly Clear | Clear |
Yes
Low of 54°F12°C, High of 60°F16°CWind: 4 mph7 km/h
Precipitation: 43% rain