Yes
you do need a jacket based on the weather in Hayward, CA, USA 1 second ago
Why? Because it's cool. Pleasantly cool, but cool and the wind is harsh and biting!
57°F14°C & Cloudy
Wind is 11 mph18 km/h from the South, gusting to 23 mph37 km/h
| February 2 | ||||
| 2pm | 57°F14°C | 12 mph19 km/h South | Cloudy | |
| 3pm | 58°F14°C | 10 mph17 km/h South | Drizzle | |
| 4pm | 58°F15°C | 11 mph17 km/h South | Rain | |
| 5pm | 59°F15°C | 10 mph16 km/h South | Cloudy | |
| 6pm | 59°F15°C | 10 mph16 km/h South | Cloudy | |
| 7pm | 59°F15°C | 10 mph16 km/h South | Cloudy | |
| 8pm | 58°F15°C | 8 mph13 km/h South | Cloudy | |
| 9pm | 58°F14°C | 7 mph12 km/h South | Cloudy | |
| 10pm | 57°F14°C | 7 mph11 km/h South | Cloudy | |
| 11pm | 56°F13°C | 7 mph11 km/h South | Cloudy | |
| February 3 | ||||
| 12am | 56°F13°C | 7 mph11 km/h South | Cloudy | |
| 1am | 55°F13°C | 6 mph10 km/h South | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| February 2 | 54°F12°C | 59°F15°C | 10 mph16 km/h from South | Rain | Drizzle |
| February 3 | 53°F11°C | 58°F14°C | 12 mph19 km/h from South | Rain | Rain |
| February 4 | 43°F6°C | 57°F14°C | 11 mph18 km/h from South | Rain | Rain |
| February 5 | 40°F5°C | 56°F13°C | 4 mph6 km/h from Southwest | Mostly Clear | Partly Cloudy |
| February 6 | 40°F5°C | 58°F14°C | 8 mph13 km/h from South | Rain | Drizzle |
| February 7 | 42°F5°C | 54°F12°C | 8 mph13 km/h from West | Drizzle | Clear |
| February 8 | 38°F3°C | 56°F13°C | 4 mph7 km/h from Northwest | Clear | Mostly Clear |
Yes
Low of 53°F12°C, High of 58°F15°CWind: 12 mph19 km/h
Precipitation: 75% rain