Yes
you do need a jacket based on the weather in Syosset, NY, USA 1 second ago
Why? Because it's cold. simple as that.
48°F9°C & Cloudy
Wind is 10 mph16 km/h from the E, gusting to 20 mph32 km/h
| April 18 | ||||
| 1am | 47°F9°C | 11 mph17 km/h E | Drizzle | |
| 2am | 47°F8°C | 12 mph19 km/h E | Drizzle | |
| 3am | 47°F8°C | 12 mph20 km/h E | Drizzle | |
| 4am | 46°F8°C | 12 mph19 km/h E | Drizzle | |
| 5am | 46°F8°C | 13 mph21 km/h E | Drizzle | |
| 6am | 46°F8°C | 13 mph20 km/h E | Drizzle | |
| 7am | 46°F8°C | 14 mph22 km/h E | Drizzle | |
| 8am | 46°F8°C | 13 mph22 km/h E | Drizzle | |
| 9am | 46°F8°C | 14 mph22 km/h E | Drizzle | |
| 10am | 47°F8°C | 13 mph22 km/h E | Drizzle | |
| 11am | 48°F9°C | 13 mph21 km/h NE | Drizzle | |
| 12pm | 48°F9°C | 13 mph22 km/h NE | Drizzle | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 18 | 45°F7°C | 49°F10°C | 13 mph21 km/h from NE | Drizzle | Mostly Cloudy |
| April 19 | 41°F5°C | 58°F15°C | 8 mph13 km/h from SE | Mostly Cloudy | Cloudy |
| April 20 | 47°F8°C | 66°F19°C | 7 mph12 km/h from W | Partly Cloudy | Mostly Clear |
| April 21 | 41°F5°C | 57°F14°C | 8 mph12 km/h from W | Mostly Cloudy | Cloudy |
| April 22 | 43°F6°C | 61°F16°C | 6 mph10 km/h from N | Partly Cloudy | Mostly Clear |
| April 23 | 43°F6°C | 63°F17°C | 7 mph11 km/h from S | Partly Cloudy | Mostly Cloudy |
| April 24 | 47°F8°C | 62°F17°C | 10 mph15 km/h from S | Mostly Cloudy | Partly Cloudy |
Yes
Low of 41°F5°C, High of 58°F15°CWind: 8 mph13 km/h
Precipitation: None