No
you don't need a jacket based on the weather in Willoughby NSW 2068, Australia 1 second ago
61°F16°C & Clear
Wind is 3 mph5 km/h from the Southwest, gusting to 10 mph16 km/h
| September 11 | ||||
| 9pm | 62°F17°C | 3 mph5 km/h Southwest | Partly Cloudy | |
| 10pm | 63°F17°C | 2 mph4 km/h South | Partly Cloudy | |
| 11pm | 64°F18°C | 2 mph3 km/h South | Mostly Clear | |
| September 12 | ||||
| 12am | 65°F19°C | 4 mph6 km/h Southeast | Mostly Clear | |
| 1am | 65°F19°C | 5 mph9 km/h Southeast | Mostly Clear | |
| 2am | 64°F18°C | 6 mph10 km/h East | Mostly Clear | |
| 3am | 63°F17°C | 6 mph10 km/h East | Clear | |
| 4am | 60°F16°C | 5 mph8 km/h East | Mostly Clear | |
| 5am | 58°F15°C | 4 mph6 km/h East | Mostly Clear | |
| 6am | 57°F14°C | 3 mph4 km/h Southeast | Mostly Cloudy | |
| 7am | 56°F13°C | 2 mph4 km/h Southwest | Partly Cloudy | |
| 8am | 55°F13°C | 3 mph4 km/h West | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 11 | 50°F10°C | 66°F19°C | 5 mph8 km/h from South | Mostly Clear | Partly Cloudy |
| September 12 | 49°F10°C | 69°F20°C | 5 mph9 km/h from East | Clear | Mostly Clear |
| September 13 | 49°F10°C | 72°F22°C | 4 mph7 km/h from North | Clear | Clear |
| September 14 | 51°F11°C | 75°F24°C | 6 mph9 km/h from Northwest | Partly Cloudy | Mostly Cloudy |
| September 15 | 61°F16°C | 78°F25°C | 11 mph18 km/h from Northwest | Mostly Cloudy | Mostly Clear |
| September 16 | 53°F12°C | 69°F21°C | 7 mph11 km/h from South | Mostly Clear | Mostly Clear |
| September 17 | 50°F10°C | 69°F21°C | 6 mph10 km/h from Northeast | Mostly Clear | Clear |
Yes
Low of 49°F10°C, High of 69°F21°CWind: 5 mph9 km/h
Precipitation: None