Yes
you do need a jacket based on the weather in Holtsville, NY, USA 1 second ago
Why? Because just cool enough for a jacket, but not warm enough to ditch it and there are strong winds blowing out there!
53°F12°C & Cloudy
Wind is 14 mph22 km/h from the Southwest, gusting to 27 mph43 km/h
| April 18 | ||||
| 10pm | 53°F12°C | 14 mph22 km/h Southwest | Mostly Cloudy | |
| 11pm | 53°F12°C | 14 mph22 km/h Southwest | Mostly Cloudy | |
| April 19 | ||||
| 12am | 52°F11°C | 12 mph20 km/h Southwest | Partly Cloudy | |
| 1am | 53°F11°C | 13 mph21 km/h Southwest | Cloudy | |
| 2am | 53°F12°C | 13 mph21 km/h Southwest | Mostly Cloudy | |
| 3am | 53°F12°C | 12 mph20 km/h Southwest | Cloudy | |
| 4am | 54°F12°C | 13 mph21 km/h Southwest | Mostly Cloudy | |
| 5am | 54°F12°C | 13 mph21 km/h Southwest | Mostly Cloudy | |
| 6am | 55°F13°C | 13 mph21 km/h Southwest | Mostly Cloudy | |
| 7am | 56°F13°C | 13 mph21 km/h Southwest | Mostly Cloudy | |
| 8am | 58°F14°C | 13 mph21 km/h Southwest | Mostly Cloudy | |
| 9am | 60°F16°C | 14 mph23 km/h Southwest | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 18 | 35°F1°C | 61°F16°C | 7 mph12 km/h from South | Mostly Clear | Mostly Cloudy |
| April 19 | 52°F11°C | 71°F22°C | 14 mph23 km/h from Southwest | Mostly Cloudy | Partly Cloudy |
| April 20 | 51°F10°C | 66°F19°C | 12 mph19 km/h from Northwest | Partly Cloudy | Partly Cloudy |
| April 21 | 45°F7°C | 56°F13°C | 7 mph12 km/h from Southeast | Mostly Cloudy | Cloudy |
| April 22 | 50°F10°C | 70°F21°C | 10 mph15 km/h from Southwest | Mostly Cloudy | Partly Cloudy |
| April 23 | 48°F9°C | 66°F19°C | 5 mph9 km/h from Southwest | Partly Cloudy | Mostly Clear |
| April 24 | 47°F8°C | 68°F20°C | 6 mph10 km/h from South | Partly Cloudy | Partly Cloudy |
Yes
Low of 53°F12°C, High of 72°F22°CWind: 14 mph23 km/h
Precipitation: None