No
you don't need a jacket based on the weather in San Ramon, CA, USA 1 second ago
62°F16°C & Clear
Wind is 1 mph2 km/h from the Southeast, gusting to 2 mph3 km/h
| September 17 | ||||
| 10am | 61°F16°C | 1 mph2 km/h Southeast | Clear | |
| 11am | 63°F17°C | 1 mph2 km/h Southeast | Clear | |
| 12pm | 69°F21°C | 2 mph3 km/h Southeast | Clear | |
| 1pm | 75°F24°C | 2 mph3 km/h Northwest | Clear | |
| 2pm | 82°F28°C | 2 mph3 km/h Northwest | Clear | |
| 3pm | 87°F31°C | 2 mph4 km/h Northwest | Clear | |
| 4pm | 91°F33°C | 3 mph5 km/h West | Mostly Clear | |
| 5pm | 92°F34°C | 4 mph7 km/h West | Mostly Clear | |
| 6pm | 93°F34°C | 6 mph9 km/h West | Mostly Clear | |
| 7pm | 92°F33°C | 7 mph11 km/h West | Mostly Clear | |
| 8pm | 90°F32°C | 7 mph12 km/h West | Partly Cloudy | |
| 9pm | 86°F30°C | 8 mph12 km/h West | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 17 | 61°F16°C | 93°F34°C | 4 mph6 km/h from West | Mostly Clear | Mostly Cloudy |
| September 18 | 62°F16°C | 79°F26°C | 6 mph9 km/h from Southwest | Cloudy | Cloudy |
| September 19 | 61°F16°C | 76°F25°C | 4 mph6 km/h from West | Partly Cloudy | Mostly Clear |
| September 20 | 57°F14°C | 80°F27°C | 4 mph7 km/h from West | Mostly Clear | Mostly Clear |
| September 21 | 57°F14°C | 83°F28°C | 4 mph7 km/h from West | Mostly Clear | Clear |
| September 22 | 58°F15°C | 91°F33°C | 3 mph5 km/h from Northwest | Mostly Clear | Partly Cloudy |
| September 23 | 62°F17°C | 79°F26°C | 4 mph6 km/h from West | Drizzle | Partly Cloudy |
No
Low of 62°F17°C, High of 79°F26°CWind: 6 mph9 km/h
Precipitation: 11% rain