No
you don't need a jacket based on the weather in Union City, CA, USA 1 second ago
59°F15°C & Mostly Clear
Wind is 4 mph6 km/h from the Northwest, gusting to 9 mph14 km/h
| September 3 | ||||
| 8am | 59°F15°C | 4 mph7 km/h Northwest | Partly Cloudy | |
| 9am | 59°F15°C | 3 mph5 km/h Northwest | Partly Cloudy | |
| 10am | 58°F15°C | 2 mph2 km/h Southwest | Partly Cloudy | |
| 11am | 61°F16°C | 2 mph3 km/h West | Partly Cloudy | |
| 12pm | 63°F17°C | 3 mph5 km/h West | Partly Cloudy | |
| 1pm | 66°F19°C | 3 mph6 km/h West | Mostly Clear | |
| 2pm | 70°F21°C | 4 mph7 km/h West | Mostly Clear | |
| 3pm | 74°F23°C | 6 mph9 km/h West | Mostly Clear | |
| 4pm | 76°F25°C | 6 mph10 km/h West | Clear | |
| 5pm | 78°F26°C | 7 mph12 km/h West | Mostly Clear | |
| 6pm | 78°F26°C | 8 mph14 km/h West | Mostly Clear | |
| 7pm | 78°F25°C | 9 mph14 km/h West | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 3 | 58°F15°C | 78°F26°C | 6 mph10 km/h from West | Mostly Clear | Partly Cloudy |
| September 4 | 57°F14°C | 74°F23°C | 7 mph11 km/h from West | Partly Cloudy | Mostly Cloudy |
| September 5 | 60°F16°C | 71°F22°C | 8 mph13 km/h from West | Mostly Cloudy | Mostly Cloudy |
| September 6 | 59°F15°C | 76°F25°C | 6 mph10 km/h from West | Mostly Clear | Mostly Cloudy |
| September 7 | 63°F17°C | 77°F25°C | 6 mph10 km/h from West | Partly Cloudy | Mostly Cloudy |
| September 8 | 62°F17°C | 75°F24°C | 7 mph10 km/h from West | Partly Cloudy | Mostly Cloudy |
| September 9 | 62°F16°C | 73°F23°C | 7 mph12 km/h from West | Partly Cloudy | Mostly Cloudy |
Yes
Low of 57°F14°C, High of 73°F23°CWind: 7 mph11 km/h
Precipitation: None