No
you don't need a jacket based on the weather in Chula Vista, CA, USA 1 second ago
72°F22°C & Mostly Clear
Wind is 3 mph5 km/h from the West, gusting to 5 mph8 km/h
| September 16 | ||||
| 12am | 72°F22°C | 3 mph5 km/h West | Mostly Clear | |
| 1am | 72°F22°C | 2 mph3 km/h West | Mostly Clear | |
| 2am | 71°F22°C | 2 mph4 km/h West | Mostly Clear | |
| 3am | 70°F21°C | 2 mph3 km/h West | Mostly Clear | |
| 4am | 70°F21°C | 2 mph3 km/h Northwest | Mostly Clear | |
| 5am | 69°F20°C | 2 mph4 km/h Northwest | Clear | |
| 6am | 68°F20°C | 2 mph3 km/h Northwest | Mostly Clear | |
| 7am | 67°F20°C | 2 mph3 km/h North | Clear | |
| 8am | 67°F20°C | 2 mph3 km/h North | Clear | |
| 9am | 67°F19°C | 1 mph2 km/h North | Mostly Clear | |
| 10am | 67°F20°C | 1 mph2 km/h North | Mostly Clear | |
| 11am | 69°F21°C | 1 mph2 km/h North | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 15 | 67°F20°C | 78°F25°C | 5 mph8 km/h from West | Mostly Clear | Mostly Clear |
| September 16 | 67°F19°C | 86°F30°C | 5 mph9 km/h from West | Mostly Clear | Mostly Cloudy |
| September 17 | 69°F21°C | 81°F27°C | 5 mph8 km/h from Northwest | Mostly Cloudy | Thunderstorms |
| September 18 | 69°F21°C | 80°F27°C | 6 mph9 km/h from West | Partly Cloudy | Partly Cloudy |
| September 19 | 68°F20°C | 81°F27°C | 5 mph8 km/h from West | Mostly Clear | Mostly Clear |
| September 20 | 67°F19°C | 81°F27°C | 6 mph9 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 21 | 67°F19°C | 79°F26°C | 5 mph9 km/h from West | Partly Cloudy | Partly Cloudy |
No
Low of 67°F20°C, High of 86°F30°CWind: 5 mph9 km/h
Precipitation: None