Yes
you do need a jacket based on the weather in San Ramon, CA 94583, USA 1 second ago
Why? Because the cold's there, but it's just a reminder, not an invasion!
41°F5°C & Clear
Wind is 11 mph17 km/h from the North, gusting to 19 mph30 km/h
| January 11 | ||||
| 11am | 42°F6°C | 11 mph18 km/h North | Clear | |
| 12pm | 46°F8°C | 11 mph19 km/h North | Clear | |
| 1pm | 50°F10°C | 12 mph20 km/h North | Clear | |
| 2pm | 54°F12°C | 13 mph21 km/h North | Clear | |
| 3pm | 58°F14°C | 14 mph23 km/h North | Clear | |
| 4pm | 60°F16°C | 14 mph23 km/h North | Clear | |
| 5pm | 61°F16°C | 15 mph24 km/h North | Clear | |
| 6pm | 61°F16°C | 14 mph22 km/h North | Clear | |
| 7pm | 59°F15°C | 13 mph21 km/h North | Clear | |
| 8pm | 55°F13°C | 11 mph18 km/h North | Clear | |
| 9pm | 54°F12°C | 10 mph16 km/h North | Clear | |
| 10pm | 52°F11°C | 10 mph16 km/h North | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| January 11 | 40°F5°C | 61°F16°C | 12 mph20 km/h from North | Clear | Clear |
| January 12 | 40°F4°C | 60°F16°C | 6 mph10 km/h from North | Clear | Clear |
| January 13 | 39°F4°C | 57°F14°C | 8 mph13 km/h from Northeast | Clear | Clear |
| January 14 | 36°F2°C | 59°F15°C | 3 mph5 km/h from Northeast | Clear | Clear |
| January 15 | 36°F2°C | 60°F16°C | 4 mph6 km/h from Northeast | Clear | Clear |
| January 16 | 37°F3°C | 62°F17°C | 2 mph4 km/h from Northeast | Clear | Clear |
| January 17 | 38°F3°C | 56°F14°C | 3 mph5 km/h from Southwest | Mostly Clear | Partly Cloudy |
Yes
Low of 40°F5°C, High of 60°F16°CWind: 6 mph10 km/h
Precipitation: None