No
you don't need a jacket based on the weather in Altadena, CA, USA 1 second ago
76°F24°C & Cloudy
Wind is 2 mph3 km/h from the Northwest, gusting to 4 mph6 km/h
| September 2 | ||||
| 4am | 76°F24°C | 3 mph5 km/h Northwest | Cloudy | |
| 5am | 76°F24°C | 3 mph5 km/h Northwest | Partly Cloudy | |
| 6am | 73°F23°C | 3 mph5 km/h Southeast | Cloudy | |
| 7am | 73°F23°C | 2 mph3 km/h North | Mostly Cloudy | |
| 8am | 73°F23°C | 2 mph3 km/h Northwest | Mostly Cloudy | |
| 9am | 72°F22°C | 1 mph1 km/h Northeast | Mostly Cloudy | |
| 10am | 73°F23°C | 1 mph2 km/h Northwest | Mostly Cloudy | |
| 11am | 77°F25°C | 2 mph3 km/h East | Partly Cloudy | |
| 12pm | 80°F27°C | 2 mph3 km/h South | Mostly Clear | |
| 1pm | 85°F30°C | 4 mph7 km/h Southwest | Partly Cloudy | |
| 2pm | 88°F31°C | 6 mph9 km/h South | Partly Cloudy | |
| 3pm | 90°F32°C | 7 mph12 km/h Southeast | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 2 | 72°F22°C | 94°F35°C | 5 mph8 km/h from South | Partly Cloudy | Clear |
| September 3 | 72°F22°C | 91°F33°C | 4 mph7 km/h from Southwest | Clear | Clear |
| September 4 | 71°F22°C | 89°F32°C | 5 mph8 km/h from Southwest | Clear | Clear |
| September 5 | 66°F19°C | 86°F30°C | 5 mph7 km/h from South | Clear | Clear |
| September 6 | 64°F18°C | 86°F30°C | 5 mph7 km/h from South | Clear | Clear |
| September 7 | 63°F17°C | 85°F30°C | 5 mph8 km/h from South | Clear | Clear |
| September 8 | 63°F17°C | 84°F29°C | 5 mph7 km/h from South | Mostly Clear | Clear |
No
Low of 72°F22°C, High of 91°F33°CWind: 4 mph7 km/h
Precipitation: 6% rain