No
you don't need a jacket based on the weather in Hayward, CA 94545, USA 1 second ago
62°F17°C & Cloudy
Wind is 5 mph8 km/h from the Northwest, gusting to 10 mph16 km/h
| September 19 | ||||
| 5am | 62°F16°C | 5 mph7 km/h Northwest | Cloudy | |
| 6am | 62°F16°C | 4 mph6 km/h North | Cloudy | |
| 7am | 61°F16°C | 4 mph7 km/h Northwest | Mostly Cloudy | |
| 8am | 61°F16°C | 5 mph8 km/h Northwest | Mostly Cloudy | |
| 9am | 61°F16°C | 5 mph8 km/h Northwest | Mostly Cloudy | |
| 10am | 61°F16°C | 4 mph6 km/h Northwest | Mostly Cloudy | |
| 11am | 61°F16°C | 4 mph6 km/h Northwest | Mostly Cloudy | |
| 12pm | 63°F17°C | 4 mph6 km/h Northwest | Partly Cloudy | |
| 1pm | 66°F19°C | 4 mph6 km/h West | Partly Cloudy | |
| 2pm | 68°F20°C | 5 mph7 km/h Northwest | Partly Cloudy | |
| 3pm | 70°F21°C | 5 mph9 km/h West | Mostly Clear | |
| 4pm | 73°F23°C | 6 mph10 km/h Northwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 19 | 61°F16°C | 75°F24°C | 6 mph10 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 20 | 60°F16°C | 76°F24°C | 6 mph10 km/h from West | Mostly Clear | Partly Cloudy |
| September 21 | 60°F16°C | 74°F23°C | 6 mph9 km/h from West | Mostly Clear | Mostly Clear |
| September 22 | 58°F15°C | 83°F28°C | 5 mph8 km/h from West | Clear | Mostly Clear |
| September 23 | 63°F17°C | 81°F27°C | 4 mph7 km/h from West | Partly Cloudy | Partly Cloudy |
| September 24 | 62°F17°C | 75°F24°C | 5 mph9 km/h from West | Mostly Clear | Partly Cloudy |
| September 25 | 59°F15°C | 74°F23°C | 5 mph8 km/h from West | Partly Cloudy | Mostly Clear |
No
Low of 60°F16°C, High of 76°F25°CWind: 6 mph10 km/h
Precipitation: None