Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
52°F
11°C
| Humidity | 57% |
| Wind Speed | W 9 mph |
| Barometer | 29.77 in (1007.9 mb) |
| Dewpoint | 37°F (3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 49°F (9°C) |
| Last update | 9 Nov 8:56 am EST |
Extended Forecast for
Smithtown NY
Today
High: 58 °F
Chance
ShowersTonight
Low: 39 °F
Mostly Clear
Tuesday
High: 60 °F
Becoming
SunnyTuesday Night
Low: 43 °F
Clear
Veterans Day
High: 60 °F
Sunny
Wednesday Night
Low: 42 °F
Mostly Cloudy
Thursday
High: 60 °F
Mostly Cloudy
then Chance
RainThursday Night
Low: 42 °F
Rain
Friday
High: 53 °F
Rain
Detailed Forecast
Today
A 30 percent chance of showers before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 58. West wind 11 to 16 mph, with gusts as high as 31 mph.
Tonight
Mostly clear, with a low around 39. West wind 7 to 10 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 60. West wind 7 to 11 mph.
Tuesday Night
Clear, with a low around 43. West wind around 7 mph.
Veterans Day
Sunny, with a high near 60. West wind 3 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 42.
Thursday
A 40 percent chance of rain after 1pm. Mostly cloudy, with a high near 60.
Thursday Night
Rain. Low around 42. Chance of precipitation is 80%.
Friday
Rain. High near 53. Chance of precipitation is 80%.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 36.
Saturday
A 30 percent chance of rain. Partly sunny, with a high near 50.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 52.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Smithtown NY
40.84°N 73.22°W (Elev. 49 ft)
40.84°N 73.22°W (Elev. 49 ft)
9:20 am EST Nov 9, 2026
9am EST Nov 9, 2026-6pm EST Nov 15, 2026
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