Yes
you do need a jacket based on the weather in Castro Valley, CA 94552, USA 1 second ago
Why? Because it's not very warm out!
57°F14°C & Partly Cloudy
Wind is 7 mph11 km/h from the Northeast, gusting to 12 mph20 km/h
| November 29 | ||||
| 3pm | 58°F15°C | 7 mph11 km/h Northeast | Partly Cloudy | |
| 4pm | 60°F15°C | 7 mph11 km/h Northeast | Partly Cloudy | |
| 5pm | 60°F16°C | 7 mph11 km/h Northeast | Partly Cloudy | |
| 6pm | 60°F15°C | 7 mph11 km/h Northeast | Mostly Cloudy | |
| 7pm | 57°F14°C | 6 mph10 km/h Northeast | Mostly Cloudy | |
| 8pm | 53°F12°C | 6 mph9 km/h Northeast | Mostly Cloudy | |
| 9pm | 51°F10°C | 6 mph9 km/h Northeast | Mostly Cloudy | |
| 10pm | 49°F9°C | 6 mph9 km/h East | Partly Cloudy | |
| 11pm | 47°F9°C | 5 mph9 km/h East | Partly Cloudy | |
| November 30 | ||||
| 12am | 46°F8°C | 5 mph8 km/h Northeast | Mostly Cloudy | |
| 1am | 45°F7°C | 5 mph8 km/h Northeast | Mostly Cloudy | |
| 2am | 45°F7°C | 5 mph9 km/h Northeast | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| November 29 | 41°F5°C | 60°F16°C | 6 mph10 km/h from Northeast | Partly Cloudy | Mostly Cloudy |
| November 30 | 40°F4°C | 62°F16°C | 4 mph7 km/h from Northeast | Partly Cloudy | Mostly Cloudy |
| December 1 | 43°F6°C | 62°F16°C | 4 mph7 km/h from Northeast | Mostly Cloudy | Mostly Clear |
| December 2 | 43°F6°C | 65°F18°C | 3 mph5 km/h from Northeast | Mostly Clear | Mostly Clear |
| December 3 | 44°F7°C | 65°F18°C | 3 mph5 km/h from Northeast | Clear | Clear |
| December 4 | 44°F7°C | 65°F19°C | 2 mph3 km/h from Northeast | Clear | Mostly Clear |
| December 5 | 44°F6°C | 64°F18°C | 2 mph3 km/h from North | Partly Cloudy | Partly Cloudy |
Yes
Low of 39°F4°C, High of 62°F17°CWind: 4 mph7 km/h
Precipitation: None