No
you don't need a jacket based on the weather in Vallejo, CA, USA 1 second ago
68°F20°C & Clear
Wind is 11 mph17 km/h from the SW, gusting to 18 mph29 km/h
| September 20 | ||||
| 10pm | 65°F18°C | 10 mph16 km/h SW | Clear | |
| 11pm | 62°F17°C | 9 mph14 km/h SW | Mostly Clear | |
| September 21 | ||||
| 12am | 60°F15°C | 9 mph14 km/h SW | Mostly Clear | |
| 1am | 58°F14°C | 9 mph14 km/h SW | Partly Cloudy | |
| 2am | 57°F14°C | 9 mph15 km/h SW | Partly Cloudy | |
| 3am | 57°F14°C | 9 mph14 km/h SW | Partly Cloudy | |
| 4am | 56°F14°C | 9 mph14 km/h SW | Partly Cloudy | |
| 5am | 56°F13°C | 8 mph13 km/h SW | Partly Cloudy | |
| 6am | 56°F13°C | 8 mph13 km/h SW | Partly Cloudy | |
| 7am | 56°F13°C | 7 mph12 km/h SW | Partly Cloudy | |
| 8am | 55°F13°C | 7 mph11 km/h SW | Mostly Cloudy | |
| 9am | 55°F13°C | 6 mph9 km/h SW | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 20 | 55°F13°C | 72°F22°C | 8 mph13 km/h from SW | Mostly Clear | Partly Cloudy |
| September 21 | 54°F12°C | 79°F26°C | 6 mph10 km/h from SW | Mostly Clear | Mostly Clear |
| September 22 | 54°F12°C | 81°F27°C | 5 mph8 km/h from SW | Mostly Clear | Clear |
| September 23 | 55°F13°C | 90°F32°C | 3 mph4 km/h from SW | Clear | Mostly Clear |
| September 24 | 58°F14°C | 85°F29°C | 5 mph8 km/h from SW | Clear | Mostly Clear |
| September 25 | 54°F12°C | 74°F23°C | 8 mph13 km/h from SW | Mostly Clear | Partly Cloudy |
| September 26 | 56°F13°C | 77°F25°C | 6 mph10 km/h from SW | Mostly Clear | Mostly Clear |
Yes
Low of 55°F13°C, High of 79°F26°CWind: 6 mph10 km/h
Precipitation: None