No
you don't need a jacket based on the weather in San Ramon, CA, USA 1 second ago
70°F21°C & Clear
Wind is 11 mph18 km/h from the Southwest, gusting to 18 mph29 km/h
| June 16 | ||||
| 5pm | 71°F22°C | 12 mph19 km/h Southwest | Clear | |
| 6pm | 72°F22°C | 11 mph18 km/h Southwest | Clear | |
| 7pm | 72°F22°C | 11 mph18 km/h Southwest | Clear | |
| 8pm | 71°F21°C | 10 mph17 km/h Southwest | Clear | |
| 9pm | 69°F20°C | 10 mph16 km/h Southwest | Clear | |
| 10pm | 66°F19°C | 9 mph15 km/h Southwest | Clear | |
| 11pm | 62°F17°C | 8 mph13 km/h Southwest | Clear | |
| June 17 | ||||
| 12am | 59°F15°C | 4 mph7 km/h Southwest | Clear | |
| 1am | 57°F14°C | 6 mph9 km/h Southwest | Clear | |
| 2am | 55°F13°C | 6 mph9 km/h Southwest | Clear | |
| 3am | 54°F12°C | 5 mph9 km/h Southwest | Clear | |
| 4am | 53°F12°C | 5 mph8 km/h Southwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| June 16 | 50°F10°C | 72°F22°C | 9 mph15 km/h from Southwest | Mostly Clear | Clear |
| June 17 | 49°F10°C | 78°F26°C | 7 mph12 km/h from Southwest | Clear | Mostly Clear |
| June 18 | 52°F11°C | 84°F29°C | 6 mph10 km/h from Southwest | Clear | Clear |
| June 19 | 53°F11°C | 69°F21°C | 11 mph18 km/h from Southwest | Clear | Partly Cloudy |
| June 20 | 51°F11°C | 68°F20°C | 12 mph19 km/h from Southwest | Mostly Clear | Clear |
| June 21 | 49°F9°C | 72°F22°C | 9 mph14 km/h from West | Clear | Clear |
| June 22 | 49°F9°C | 76°F25°C | 7 mph11 km/h from West | Clear | Partly Cloudy |
Yes
Low of 49°F10°C, High of 78°F26°CWind: 7 mph12 km/h
Precipitation: None