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Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
62°F
17°C
| Humidity | 46% |
| Wind Speed | E 8 G 21 mph |
| Barometer | 30.48 in (1032.0 mb) |
| Dewpoint | 41°F (5°C) |
| Visibility | 10.00 mi |
| Last update | 2 Oct 9:56 am EDT |
Extended Forecast for
Smithtown NY
Today
High: 64 °F
Sunny
Tonight
Low: 49 °F
Mostly Clear
Friday
High: 71 °F
Sunny
Friday Night
Low: 55 °F
Clear
Saturday
High: 78 °F
Sunny
Saturday Night
Low: 58 °F
Mostly Clear
Sunday
High: 79 °F
Sunny
Sunday Night
Low: 59 °F
Clear
Monday
High: 78 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 64. Northeast wind 7 to 10 mph.
Tonight
Mostly clear, with a low around 49. Calm wind.
Friday
Sunny, with a high near 71. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Friday Night
Clear, with a low around 55. Southwest wind around 6 mph.
Saturday
Sunny, with a high near 78. Southwest wind around 6 mph.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 79.
Sunday Night
Clear, with a low around 59.
Monday
Sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 62.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 75.
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)
6:08 am EDT Oct 2, 2025
10am EDT Oct 2, 2025-6pm EDT Oct 8, 2025
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