Yes
you do need a jacket based on the weather in Hayward, CA 94545, USA 1 second ago
Why? Because it's cool. Pleasantly cool, but cool!
55°F13°C & Cloudy
Wind is 6 mph10 km/h from the Northwest, gusting to 12 mph19 km/h
| February 22 | ||||
| 10pm | 54°F12°C | 6 mph9 km/h Northwest | Mostly Cloudy | |
| 11pm | 53°F11°C | 4 mph7 km/h Northwest | Mostly Clear | |
| February 23 | ||||
| 12am | 51°F11°C | 3 mph4 km/h Northwest | Partly Cloudy | |
| 1am | 51°F10°C | 2 mph3 km/h North | Partly Cloudy | |
| 2am | 50°F10°C | 2 mph3 km/h Southeast | Partly Cloudy | |
| 3am | 50°F10°C | 3 mph4 km/h Southeast | Mostly Cloudy | |
| 4am | 49°F10°C | 2 mph4 km/h Southeast | Mostly Cloudy | |
| 5am | 49°F9°C | 3 mph4 km/h East | Mostly Cloudy | |
| 6am | 48°F9°C | 2 mph4 km/h Southeast | Mostly Cloudy | |
| 7am | 48°F9°C | 3 mph4 km/h Southeast | Mostly Cloudy | |
| 8am | 48°F9°C | 2 mph4 km/h East | Mostly Cloudy | |
| 9am | 47°F8°C | 1 mph2 km/h East | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| February 22 | 45°F7°C | 63°F17°C | 5 mph8 km/h from Northwest | Partly Cloudy | Partly Cloudy |
| February 23 | 47°F8°C | 62°F17°C | 3 mph5 km/h from Northwest | Cloudy | Cloudy |
| February 24 | 51°F10°C | 62°F17°C | 4 mph7 km/h from Southwest | Cloudy | Partly Cloudy |
| February 25 | 46°F8°C | 64°F18°C | 4 mph7 km/h from Northwest | Clear | Clear |
| February 26 | 44°F6°C | 69°F21°C | 3 mph5 km/h from North | Mostly Clear | Mostly Cloudy |
| February 27 | 49°F10°C | 68°F20°C | 4 mph6 km/h from Northwest | Mostly Cloudy | Mostly Clear |
| February 28 | 48°F9°C | 63°F17°C | 4 mph7 km/h from Northwest | Mostly Clear | Partly Cloudy |
Yes
Low of 47°F9°C, High of 63°F17°CWind: 3 mph5 km/h
Precipitation: None