Yes
you do need a jacket based on the weather in San Ramon, CA 94582, USA 1 second ago
Why? Because it's not very warm out!
58°F15°C & Partly Cloudy
Wind is 2 mph4 km/h from the West, gusting to 14 mph22 km/h
| October 11 | ||||
| 4am | 58°F15°C | 5 mph7 km/h West | Partly Cloudy | |
| 5am | 57°F14°C | 5 mph8 km/h West | Mostly Clear | |
| 6am | 55°F13°C | 3 mph5 km/h West | Mostly Clear | |
| 7am | 54°F12°C | 3 mph5 km/h Southwest | Mostly Clear | |
| 8am | 52°F11°C | 3 mph6 km/h Southwest | Mostly Clear | |
| 9am | 51°F10°C | 2 mph4 km/h West | Mostly Clear | |
| 10am | 50°F10°C | 3 mph5 km/h West | Mostly Clear | |
| 11am | 52°F11°C | 3 mph5 km/h West | Mostly Clear | |
| 12pm | 56°F13°C | 4 mph7 km/h West | Clear | |
| 1pm | 60°F16°C | 6 mph10 km/h West | Clear | |
| 2pm | 63°F17°C | 8 mph13 km/h Northwest | Clear | |
| 3pm | 66°F19°C | 8 mph13 km/h Northwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| October 11 | 50°F10°C | 69°F21°C | 7 mph12 km/h from West | Mostly Clear | Clear |
| October 12 | 46°F8°C | 72°F22°C | 5 mph9 km/h from West | Clear | Mostly Cloudy |
| October 13 | 51°F11°C | 63°F17°C | 9 mph14 km/h from Southwest | Rain | Rain |
| October 14 | 50°F10°C | 59°F15°C | 3 mph5 km/h from South | Rain | Drizzle |
| October 15 | 46°F8°C | 63°F17°C | 4 mph6 km/h from West | Partly Cloudy | Mostly Clear |
| October 16 | 48°F9°C | 67°F19°C | 3 mph5 km/h from Northwest | Clear | Mostly Clear |
| October 17 | 48°F9°C | 68°F20°C | 3 mph5 km/h from North | Clear | Clear |
Yes
Low of 46°F8°C, High of 72°F22°CWind: 5 mph9 km/h
Precipitation: None