No
you don't need a jacket based on the weather in Chula Vista, CA 91910, USA 1 second ago
69°F21°C & Partly Cloudy
Wind is 2 mph3 km/h from the West, gusting to 3 mph5 km/h
| September 15 | ||||
| 1am | 69°F20°C | 2 mph3 km/h West | Partly Cloudy | |
| 2am | 68°F20°C | 2 mph3 km/h Northwest | Partly Cloudy | |
| 3am | 67°F20°C | 1 mph2 km/h North | Mostly Cloudy | |
| 4am | 67°F19°C | 2 mph3 km/h Northwest | Mostly Cloudy | |
| 5am | 66°F19°C | 3 mph4 km/h North | Mostly Cloudy | |
| 6am | 65°F19°C | 2 mph3 km/h North | Mostly Cloudy | |
| 7am | 64°F18°C | 2 mph3 km/h North | Partly Cloudy | |
| 8am | 63°F17°C | 2 mph3 km/h Northeast | Partly Cloudy | |
| 9am | 63°F17°C | 2 mph3 km/h Northeast | Partly Cloudy | |
| 10am | 63°F17°C | 2 mph3 km/h Northeast | Partly Cloudy | |
| 11am | 65°F18°C | 1 mph2 km/h North | Partly Cloudy | |
| 12pm | 67°F20°C | 2 mph3 km/h West | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 14 | 66°F19°C | 75°F24°C | 5 mph8 km/h from West | Mostly Cloudy | Partly Cloudy |
| September 15 | 63°F17°C | 81°F27°C | 5 mph8 km/h from West | Mostly Clear | Clear |
| September 16 | 67°F20°C | 86°F30°C | 5 mph8 km/h from West | Mostly Clear | Mostly Cloudy |
| September 17 | 70°F21°C | 85°F29°C | 5 mph8 km/h from Northwest | Mostly Cloudy | Mostly Cloudy |
| September 18 | 68°F20°C | 83°F28°C | 5 mph8 km/h from West | Partly Cloudy | Mostly Clear |
| September 19 | 69°F20°C | 83°F28°C | 5 mph9 km/h from West | Mostly Clear | Partly Cloudy |
| September 20 | 69°F20°C | 81°F27°C | 6 mph10 km/h from West | Partly Cloudy | Partly Cloudy |
No
Low of 63°F17°C, High of 81°F27°CWind: 5 mph8 km/h
Precipitation: None