Yes
you do need a jacket based on the weather in Livermore, CA, USA 1 second ago
Why? Because it's not very warm out.
56°F13°C & Mostly Clear
Wind is 5 mph8 km/h from the SW, gusting to 9 mph14 km/h
| April 19 | ||||
| 12pm | 56°F13°C | 5 mph9 km/h SW | Mostly Clear | |
| 1pm | 59°F15°C | 6 mph9 km/h W | Clear | |
| 2pm | 63°F17°C | 6 mph10 km/h W | Clear | |
| 3pm | 67°F20°C | 7 mph11 km/h W | Clear | |
| 4pm | 70°F21°C | 8 mph13 km/h W | Clear | |
| 5pm | 72°F22°C | 9 mph14 km/h W | Clear | |
| 6pm | 73°F23°C | 9 mph15 km/h W | Clear | |
| 7pm | 73°F23°C | 10 mph16 km/h W | Clear | |
| 8pm | 72°F22°C | 11 mph17 km/h W | Clear | |
| 9pm | 69°F20°C | 10 mph16 km/h W | Clear | |
| 10pm | 65°F18°C | 8 mph13 km/h SW | Clear | |
| 11pm | 60°F16°C | 7 mph11 km/h SW | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 19 | 48°F9°C | 73°F23°C | 8 mph12 km/h from W | Clear | Mostly Clear |
| April 20 | 49°F9°C | 74°F24°C | 9 mph14 km/h from SW | Mostly Clear | Mostly Clear |
| April 21 | 49°F9°C | 79°F26°C | 5 mph7 km/h from NW | Clear | Mostly Clear |
| April 22 | 53°F12°C | 80°F27°C | 5 mph9 km/h from W | Mostly Clear | Mostly Clear |
| April 23 | 49°F10°C | 70°F21°C | 8 mph14 km/h from W | Partly Cloudy | Partly Cloudy |
| April 24 | 47°F8°C | 65°F19°C | 7 mph12 km/h from W | Partly Cloudy | Partly Cloudy |
| April 25 | 48°F9°C | 62°F17°C | 9 mph15 km/h from W | Partly Cloudy | Mostly Cloudy |
Yes
Low of 49°F10°C, High of 74°F24°CWind: 9 mph14 km/h
Precipitation: None