No
you don't need a jacket based on the weather in Smithtown, NY 11787, USA 1 second ago
70°F21°C & Mostly Cloudy
Wind is 2 mph4 km/h from the South, gusting to 5 mph8 km/h
| June 19 | ||||
| 2am | 69°F21°C | 4 mph7 km/h South | Haze | |
| 3am | 69°F21°C | 4 mph7 km/h South | Haze | |
| 4am | 70°F21°C | 4 mph6 km/h Southwest | Haze | |
| 5am | 70°F21°C | 4 mph7 km/h Southwest | Haze | |
| 6am | 71°F22°C | 5 mph8 km/h Southwest | Haze | |
| 7am | 73°F23°C | 5 mph9 km/h Southwest | Mostly Cloudy | |
| 8am | 76°F24°C | 6 mph10 km/h West | Mostly Clear | |
| 9am | 78°F25°C | 7 mph11 km/h Southwest | Mostly Clear | |
| 10am | 80°F27°C | 7 mph11 km/h Southwest | Mostly Clear | |
| 11am | 83°F28°C | 7 mph12 km/h Southwest | Mostly Clear | |
| 12pm | 84°F29°C | 9 mph14 km/h Southwest | Mostly Clear | |
| 1pm | 85°F30°C | 10 mph16 km/h South | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| June 19 | 69°F21°C | 86°F30°C | 9 mph15 km/h from Southwest | Mostly Clear | Rain |
| June 20 | 66°F19°C | 82°F28°C | 11 mph17 km/h from West | Clear | Partly Cloudy |
| June 21 | 69°F21°C | 86°F30°C | 6 mph10 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| June 22 | 72°F22°C | 93°F34°C | 10 mph16 km/h from West | Mostly Cloudy | Mostly Clear |
| June 23 | 79°F26°C | 96°F35°C | 5 mph8 km/h from South | Mostly Clear | Clear |
| June 24 | 77°F25°C | 98°F37°C | 6 mph10 km/h from West | Clear | Mostly Clear |
| June 25 | 74°F23°C | 93°F34°C | 6 mph10 km/h from West | Mostly Clear | Partly Cloudy |
No
Low of 66°F19°C, High of 82°F28°CWind: 11 mph17 km/h
Precipitation: None