No
you don't need a jacket based on the weather in San Ramon, CA, USA 1 second ago
60°F15°C & Mostly Clear
Wind is 2 mph4 km/h from the Northwest, gusting to 10 mph16 km/h
| August 26 | ||||
| 9am | 60°F15°C | 3 mph5 km/h Northwest | Mostly Clear | |
| 10am | 60°F15°C | 3 mph5 km/h Northwest | Mostly Clear | |
| 11am | 62°F17°C | 4 mph7 km/h West | Mostly Clear | |
| 12pm | 66°F19°C | 4 mph7 km/h West | Clear | |
| 1pm | 70°F21°C | 6 mph9 km/h Southwest | Clear | |
| 2pm | 73°F23°C | 6 mph10 km/h Southwest | Clear | |
| 3pm | 77°F25°C | 6 mph10 km/h West | Clear | |
| 4pm | 81°F27°C | 7 mph11 km/h West | Clear | |
| 5pm | 82°F28°C | 8 mph13 km/h West | Clear | |
| 6pm | 82°F28°C | 9 mph15 km/h West | Clear | |
| 7pm | 80°F27°C | 10 mph16 km/h West | Clear | |
| 8pm | 78°F25°C | 10 mph16 km/h West | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 26 | 59°F15°C | 82°F28°C | 7 mph11 km/h from West | Clear | Mostly Clear |
| August 27 | 57°F14°C | 80°F27°C | 6 mph10 km/h from West | Mostly Clear | Mostly Clear |
| August 28 | 55°F13°C | 82°F28°C | 6 mph9 km/h from West | Clear | Mostly Clear |
| August 29 | 56°F13°C | 81°F27°C | 5 mph8 km/h from West | Mostly Clear | Mostly Clear |
| August 30 | 53°F12°C | 85°F30°C | 5 mph8 km/h from Southwest | Clear | Clear |
| August 31 | 55°F13°C | 82°F28°C | 5 mph9 km/h from Southwest | Mostly Clear | Partly Cloudy |
| September 1 | 56°F14°C | 79°F26°C | 6 mph10 km/h from Southwest | Mostly Clear | Mostly Clear |
Yes
Low of 57°F14°C, High of 80°F27°CWind: 6 mph10 km/h
Precipitation: None