Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Partly Cloudy
60°F
16°C
| Humidity | 72% |
| Wind Speed | NW 13 G 21 mph |
| Barometer | 29.72 in (1006.5 mb) |
| Dewpoint | 51°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 7 Nov 1:56 pm EST |
Extended Forecast for
Smithtown NY
This Afternoon
High: 65 °F
Mostly Sunny
Tonight
Low: 43 °F
Partly Cloudy
then Slight
Chance
ShowersSunday
High: 62 °F
Sunny
Sunday Night
Low: 43 °F
Mostly Clear
Monday
High: 58 °F
Mostly Sunny
Monday Night
Low: 39 °F
Mostly Clear
Tuesday
High: 60 °F
Mostly Sunny
Tuesday Night
Low: 42 °F
Mostly Clear
Veterans Day
High: 60 °F
Sunny
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 65. West wind 15 to 17 mph.
Tonight
A slight chance of showers between 1am and 4am. Partly cloudy, with a low around 43. West wind around 16 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 62. West wind 11 to 17 mph, with gusts as high as 28 mph.
Sunday Night
Mostly clear, with a low around 43. West wind 11 to 14 mph.
Monday
Mostly sunny, with a high near 58. West wind 11 to 16 mph, with gusts as high as 28 mph.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 42.
Veterans Day
Sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 39.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 57.
Thursday Night
Rain likely. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.
Friday
Rain likely. Partly sunny, with a high near 51. Breezy. Chance of precipitation is 60%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Smithtown NY
40.86°N 73.22°W (Elev. 82 ft)
40.86°N 73.22°W (Elev. 82 ft)
1:40 pm EST Nov 7, 2026
2pm EST Nov 7, 2026-6pm EST Nov 13, 2026
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