No
you don't need a jacket based on the weather in San Bernardino, CA, USA 1 second ago
59°F15°C & Clear
Wind is 4 mph6 km/h from the Northwest, gusting to 6 mph10 km/h
| October 17 | ||||
| 7am | 59°F15°C | 4 mph6 km/h Northwest | Clear | |
| 8am | 57°F14°C | 2 mph3 km/h Northeast | Clear | |
| 9am | 56°F13°C | 3 mph5 km/h North | Clear | |
| 10am | 55°F13°C | 5 mph8 km/h North | Clear | |
| 11am | 55°F13°C | 5 mph8 km/h North | Clear | |
| 12pm | 55°F13°C | 5 mph8 km/h North | Clear | |
| 1pm | 54°F12°C | 6 mph10 km/h Northwest | Clear | |
| 2pm | 53°F12°C | 6 mph9 km/h North | Clear | |
| 3pm | 56°F13°C | 5 mph8 km/h Northeast | Clear | |
| 4pm | 63°F17°C | 4 mph7 km/h North | Clear | |
| 5pm | 69°F21°C | 4 mph6 km/h North | Clear | |
| 6pm | 73°F23°C | 4 mph6 km/h North | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| October 16 | 48°F9°C | 79°F26°C | 4 mph7 km/h from North | Clear | Clear |
| October 17 | 53°F12°C | 80°F27°C | 5 mph9 km/h from North | Clear | Clear |
| October 18 | 54°F12°C | 83°F28°C | 3 mph5 km/h from West | Clear | Mostly Clear |
| October 19 | 56°F13°C | 83°F28°C | 3 mph5 km/h from Southwest | Clear | Clear |
| October 20 | 56°F13°C | 84°F29°C | 3 mph5 km/h from Southwest | Clear | Clear |
| October 21 | 57°F14°C | 76°F24°C | 4 mph6 km/h from Southwest | Mostly Clear | Partly Cloudy |
| October 22 | 55°F13°C | 70°F21°C | 3 mph5 km/h from Southwest | Mostly Clear | Mostly Clear |
Yes
Low of 54°F12°C, High of 81°F27°CWind: 5 mph9 km/h
Precipitation: None