Yes
you do need a jacket based on the weather in San Jose, CA, USA 1 minute ago
Why? Because it's cold enough that makes you wish you had a hat, but you're still too proud to admit it!
44°F7°C & Mostly Clear
Wind is 2 mph4 km/h from the East, gusting to 5 mph8 km/h
| January 27 | ||||
| 12am | 44°F7°C | 3 mph4 km/h East | Clear | |
| 1am | 43°F6°C | 3 mph5 km/h East | Clear | |
| 2am | 42°F6°C | 3 mph5 km/h South | Clear | |
| 3am | 41°F5°C | 4 mph7 km/h Southeast | Clear | |
| 4am | 40°F4°C | 3 mph5 km/h Southeast | Clear | |
| 5am | 39°F4°C | 1 mph2 km/h East | Clear | |
| 6am | 39°F4°C | 2 mph3 km/h East | Clear | |
| 7am | 38°F3°C | 3 mph4 km/h East | Clear | |
| 8am | 38°F3°C | 3 mph4 km/h East | Clear | |
| 9am | 37°F3°C | 3 mph5 km/h East | Clear | |
| 10am | 37°F3°C | 3 mph4 km/h East | Clear | |
| 11am | 39°F4°C | 2 mph4 km/h East | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| January 26 | 40°F4°C | 57°F14°C | 3 mph5 km/h from Northwest | Partly Cloudy | Clear |
| January 27 | 37°F3°C | 59°F15°C | 4 mph6 km/h from Northwest | Clear | Clear |
| January 28 | 38°F3°C | 60°F16°C | 3 mph5 km/h from Northwest | Clear | Mostly Clear |
| January 29 | 38°F4°C | 59°F15°C | 3 mph5 km/h from Northwest | Mostly Clear | Partly Cloudy |
| January 30 | 41°F5°C | 57°F14°C | 3 mph5 km/h from Northwest | Partly Cloudy | Cloudy |
| January 31 | 43°F6°C | 54°F12°C | 5 mph8 km/h from Southeast | Cloudy | Cloudy |
| February 1 | 49°F9°C | 59°F15°C | 4 mph6 km/h from Southwest | Mostly Cloudy | Partly Cloudy |
Yes
Low of 37°F3°C, High of 59°F15°CWind: 4 mph6 km/h
Precipitation: None