No
you don't need a jacket based on the weather in Altadena, CA, USA 1 second ago
80°F27°C & Clear
Wind is 2 mph4 km/h from the South, gusting to 5 mph8 km/h
| October 30 | ||||
| 7pm | 82°F28°C | 4 mph6 km/h South | Clear | |
| 8pm | 83°F29°C | 5 mph7 km/h South | Clear | |
| 9pm | 84°F29°C | 4 mph7 km/h South | Clear | |
| 10pm | 85°F29°C | 5 mph7 km/h Southwest | Clear | |
| 11pm | 84°F29°C | 5 mph8 km/h Southwest | Clear | |
| October 31 | ||||
| 12am | 82°F28°C | 4 mph6 km/h South | Clear | |
| 1am | 77°F25°C | 3 mph5 km/h South | Clear | |
| 2am | 74°F23°C | 2 mph3 km/h East | Clear | |
| 3am | 72°F22°C | 2 mph3 km/h Northeast | Clear | |
| 4am | 70°F21°C | 2 mph3 km/h North | Clear | |
| 5am | 69°F21°C | 2 mph3 km/h North | Clear | |
| 6am | 68°F20°C | 2 mph3 km/h North | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| October 30 | 67°F19°C | 85°F29°C | 3 mph5 km/h from South | Clear | Clear |
| October 31 | 62°F17°C | 79°F26°C | 3 mph5 km/h from Southwest | Clear | Clear |
| November 1 | 64°F18°C | 82°F28°C | 3 mph5 km/h from Southwest | Clear | Clear |
| November 2 | 65°F18°C | 83°F28°C | 3 mph5 km/h from Southwest | Mostly Clear | Mostly Clear |
| November 3 | 60°F16°C | 77°F25°C | 3 mph6 km/h from South | Partly Cloudy | Mostly Clear |
| November 4 | 56°F14°C | 75°F24°C | 3 mph5 km/h from South | Clear | Clear |
| November 5 | 56°F13°C | 73°F23°C | 4 mph6 km/h from South | Mostly Clear | Partly Cloudy |
No
Low of 63°F17°C, High of 79°F26°CWind: 3 mph5 km/h
Precipitation: None