No
you don't need a jacket based on the weather in Union City, CA, USA 1 second ago
74°F23°C & Mostly Clear
Wind is 7 mph11 km/h from the Northwest, gusting to 14 mph22 km/h
| May 5 | ||||
| 11pm | 70°F21°C | 5 mph7 km/h Northwest | Clear | |
| May 6 | ||||
| 12am | 67°F19°C | 4 mph6 km/h North | Clear | |
| 1am | 64°F18°C | 4 mph6 km/h North | Clear | |
| 2am | 62°F17°C | 2 mph4 km/h Southeast | Clear | |
| 3am | 61°F16°C | 2 mph4 km/h East | Clear | |
| 4am | 59°F15°C | 1 mph2 km/h East | Clear | |
| 5am | 57°F14°C | 2 mph3 km/h Southeast | Clear | |
| 6am | 55°F13°C | 2 mph3 km/h Southeast | Clear | |
| 7am | 54°F12°C | 3 mph4 km/h West | Clear | |
| 8am | 54°F12°C | 2 mph4 km/h Southeast | Clear | |
| 9am | 53°F12°C | 3 mph5 km/h Southeast | Clear | |
| 10am | 55°F13°C | 3 mph5 km/h East | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 5 | 51°F11°C | 85°F29°C | 7 mph11 km/h from North | Clear | Clear |
| May 6 | 53°F12°C | 78°F25°C | 7 mph10 km/h from West | Clear | Mostly Clear |
| May 7 | 53°F11°C | 73°F23°C | 7 mph11 km/h from West | Mostly Clear | Mostly Clear |
| May 8 | 52°F11°C | 75°F24°C | 5 mph9 km/h from West | Partly Cloudy | Mostly Clear |
| May 9 | 52°F11°C | 81°F27°C | 5 mph7 km/h from West | Clear | Mostly Clear |
| May 10 | 54°F12°C | 76°F25°C | 5 mph8 km/h from West | Mostly Clear | Mostly Clear |
| May 11 | 51°F11°C | 68°F20°C | 8 mph13 km/h from West | Mostly Clear | Partly Cloudy |
Yes
Low of 53°F12°C, High of 78°F26°CWind: 7 mph10 km/h
Precipitation: None