Yes
you do need a jacket based on the weather in Napa County Airport, 2030 Airport Rd, Napa, CA 94558, USA 1 second ago
Why? Because it's cool. Pleasantly cool, but cool.
52°F11°C & Mostly Cloudy
Wind is 5 mph8 km/h from the SW, gusting to 8 mph13 km/h
| April 20 | ||||
| 4am | 52°F11°C | 5 mph8 km/h SW | Partly Cloudy | |
| 5am | 51°F10°C | 5 mph8 km/h SW | Partly Cloudy | |
| 6am | 50°F10°C | 5 mph7 km/h SW | Partly Cloudy | |
| 7am | 49°F9°C | 5 mph8 km/h W | Mostly Cloudy | |
| 8am | 48°F9°C | 5 mph7 km/h W | Cloudy | |
| 9am | 48°F9°C | 5 mph8 km/h W | Cloudy | |
| 10am | 48°F9°C | 4 mph7 km/h W | Cloudy | |
| 11am | 50°F10°C | 4 mph6 km/h W | Mostly Cloudy | |
| 12pm | 53°F12°C | 4 mph7 km/h SW | Partly Cloudy | |
| 1pm | 57°F14°C | 5 mph7 km/h SW | Mostly Clear | |
| 2pm | 62°F16°C | 5 mph8 km/h SW | Clear | |
| 3pm | 66°F19°C | 6 mph9 km/h SW | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 20 | 48°F9°C | 75°F24°C | 7 mph11 km/h from SW | Mostly Clear | Mostly Clear |
| April 21 | 48°F9°C | 77°F25°C | 4 mph7 km/h from SW | Clear | Mostly Clear |
| April 22 | 50°F10°C | 73°F23°C | 7 mph11 km/h from SW | Mostly Clear | Mostly Cloudy |
| April 23 | 52°F11°C | 64°F18°C | 9 mph15 km/h from SW | Partly Cloudy | Mostly Cloudy |
| April 24 | 50°F10°C | 66°F19°C | 8 mph13 km/h from SW | Partly Cloudy | Partly Cloudy |
| April 25 | 45°F7°C | 63°F17°C | 8 mph12 km/h from W | Mostly Cloudy | Mostly Cloudy |
| April 26 | 47°F9°C | 69°F20°C | 8 mph13 km/h from W | Partly Cloudy | Clear |
Yes
Low of 48°F9°C, High of 77°F25°CWind: 4 mph7 km/h
Precipitation: None