Yes
you do need a jacket based on the weather in Buchanan Field Airport (CCR), 550 Sally Ride Dr, Concord, CA 94520, USA 1 second ago
Why? Because it's not very warm out.
57°F14°C & Partly Cloudy
Wind is 9 mph15 km/h from the W, gusting to 21 mph34 km/h
| April 27 | ||||
| 1am | 55°F13°C | 7 mph12 km/h W | Clear | |
| 2am | 54°F12°C | 7 mph11 km/h SW | Clear | |
| 3am | 53°F12°C | 7 mph10 km/h SW | Clear | |
| 4am | 52°F11°C | 6 mph10 km/h SW | Clear | |
| 5am | 51°F11°C | 6 mph10 km/h SW | Clear | |
| 6am | 50°F10°C | 6 mph9 km/h SW | Clear | |
| 7am | 49°F10°C | 6 mph9 km/h SW | Clear | |
| 8am | 49°F9°C | 5 mph8 km/h SW | Clear | |
| 9am | 48°F9°C | 5 mph8 km/h SW | Mostly Clear | |
| 10am | 49°F10°C | 5 mph8 km/h SW | Clear | |
| 11am | 52°F11°C | 5 mph9 km/h SW | Clear | |
| 12pm | 55°F13°C | 6 mph9 km/h SW | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 26 | 53°F12°C | 67°F19°C | 10 mph17 km/h from W | Mostly Clear | Clear |
| April 27 | 48°F9°C | 71°F22°C | 8 mph13 km/h from W | Mostly Clear | Clear |
| April 28 | 50°F10°C | 74°F23°C | 10 mph15 km/h from W | Clear | Mostly Clear |
| April 29 | 49°F9°C | 73°F23°C | 8 mph13 km/h from W | Clear | Clear |
| April 30 | 48°F9°C | 75°F24°C | 7 mph12 km/h from W | Clear | Clear |
| May 1 | 49°F9°C | 77°F25°C | 8 mph12 km/h from NW | Clear | Mostly Clear |
| May 2 | 53°F11°C | 80°F27°C | 7 mph12 km/h from W | Clear | Mostly Clear |
Yes
Low of 48°F9°C, High of 71°F22°CWind: 8 mph13 km/h
Precipitation: None