Yes
you do need a jacket based on the weather in Pleasanton, CA 94588, USA 1 second ago
Why? Because it's cool. Pleasantly cool, but cool!
55°F13°C & Cloudy
Wind is 2 mph3 km/h from the South, gusting to 4 mph7 km/h
| December 23 | ||||
| 2am | 55°F13°C | 2 mph3 km/h South | Drizzle | |
| 3am | 56°F13°C | 2 mph3 km/h South | Cloudy | |
| 4am | 56°F13°C | 2 mph3 km/h Southwest | Cloudy | |
| 5am | 56°F13°C | 1 mph2 km/h South | Cloudy | |
| 6am | 56°F13°C | 1 mph2 km/h South | Cloudy | |
| 7am | 56°F13°C | 1 mph2 km/h South | Cloudy | |
| 8am | 55°F13°C | 2 mph3 km/h Southeast | Cloudy | |
| 9am | 54°F12°C | 1 mph2 km/h East | Cloudy | |
| 10am | 54°F12°C | 2 mph3 km/h Northeast | Mostly Cloudy | |
| 11am | 54°F12°C | 3 mph4 km/h Northeast | Mostly Cloudy | |
| 12pm | 57°F14°C | 2 mph3 km/h East | Partly Cloudy | |
| 1pm | 60°F16°C | 2 mph3 km/h East | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| December 22 | 51°F11°C | 64°F18°C | 3 mph4 km/h from West | Mostly Cloudy | Drizzle |
| December 23 | 54°F12°C | 66°F19°C | 2 mph3 km/h from Southeast | Mostly Cloudy | Rain |
| December 24 | 44°F7°C | 59°F15°C | 9 mph15 km/h from West | Rain | Partly Cloudy |
| December 25 | 40°F5°C | 55°F13°C | 3 mph5 km/h from West | Mostly Cloudy | Cloudy |
| December 26 | 44°F7°C | 58°F15°C | 5 mph7 km/h from Southwest | Cloudy | Rain |
| December 27 | 52°F11°C | 60°F16°C | 5 mph7 km/h from Southwest | Rain | Cloudy |
| December 28 | 54°F12°C | 62°F17°C | 5 mph8 km/h from Southwest | Cloudy | Mostly Cloudy |
Yes
Low of 54°F12°C, High of 66°F19°CWind: 2 mph3 km/h
Precipitation: None