No
you don't need a jacket based on the weather in Syosset, NY 11791, USA 1 second ago
67°F19°C & Mostly Clear
Wind is 6 mph10 km/h from the South, gusting to 12 mph20 km/h
| September 5 | ||||
| 6am | 66°F19°C | 5 mph9 km/h South | Partly Cloudy | |
| 7am | 67°F19°C | 5 mph9 km/h Southwest | Clear | |
| 8am | 69°F21°C | 6 mph9 km/h Southwest | Mostly Clear | |
| 9am | 71°F22°C | 7 mph11 km/h Southwest | Mostly Clear | |
| 10am | 74°F23°C | 8 mph12 km/h Southwest | Mostly Clear | |
| 11am | 76°F25°C | 8 mph13 km/h Southwest | Mostly Clear | |
| 12pm | 79°F26°C | 10 mph15 km/h Southwest | Mostly Clear | |
| 1pm | 80°F27°C | 10 mph16 km/h Southwest | Clear | |
| 2pm | 81°F27°C | 11 mph17 km/h South | Mostly Clear | |
| 3pm | 81°F27°C | 12 mph19 km/h South | Mostly Clear | |
| 4pm | 80°F27°C | 12 mph20 km/h South | Mostly Clear | |
| 5pm | 79°F26°C | 12 mph20 km/h South | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 5 | 66°F19°C | 81°F27°C | 10 mph15 km/h from South | Mostly Clear | Clear |
| September 6 | 68°F20°C | 82°F28°C | 10 mph17 km/h from South | Thunderstorms | Drizzle |
| September 7 | 62°F17°C | 70°F21°C | 6 mph9 km/h from Northwest | Rain | Mostly Clear |
| September 8 | 57°F14°C | 73°F23°C | 6 mph9 km/h from Northwest | Clear | Clear |
| September 9 | 57°F14°C | 73°F23°C | 8 mph13 km/h from East | Mostly Clear | Mostly Clear |
| September 10 | 59°F15°C | 71°F22°C | 8 mph13 km/h from Northeast | Mostly Cloudy | Mostly Cloudy |
| September 11 | 61°F16°C | 75°F24°C | 9 mph14 km/h from North | Mostly Clear | Mostly Clear |
No
Low of 68°F20°C, High of 82°F28°CWind: 10 mph17 km/h
Precipitation: 47% rain