Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Partly Cloudy
75°F
24°C
| Humidity | 58% |
| Wind Speed | S 10 mph |
| Barometer | 29.91 in (1012.8 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 10.00 mi |
| Last update | 16 Apr 9:56 am EDT |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Today
High: 84 °F
Mostly Sunny
Tonight
Low: 56 °F
Mostly Cloudy
Friday
High: 75 °F
Chance
ShowersFriday Night
Low: 52 °F
Chance
Showers then
Mostly CloudySaturday
High: 62 °F
Partly Sunny
Saturday Night
Low: 48 °F
Mostly Cloudy
then Chance
ShowersSunday
High: 56 °F
Showers
LikelySunday Night
Low: 37 °F
Mostly Cloudy
Monday
High: 49 °F
Mostly Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 84. South wind 8 to 11 mph.
Tonight
Mostly cloudy, with a low around 56. Southwest wind 6 to 10 mph.
Friday
A 30 percent chance of showers, mainly after 2pm. Partly sunny, with a high near 75. West wind 5 to 8 mph.
Friday Night
A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 52. Northeast wind around 6 mph.
Saturday
Partly sunny, with a high near 62. East wind 7 to 10 mph.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 48.
Sunday
Showers likely, mainly after 8am. Cloudy, with a high near 56. Chance of precipitation is 70%.
Sunday Night
Mostly cloudy, with a low around 37.
Monday
Mostly sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 52.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Partly sunny, with a high near 61.
Additional Forecasts and Information
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Point Forecast:
Islip, Long Island Mac Arthur Airport NY
40.81°N 73.11°W (Elev. 98 ft)
40.81°N 73.11°W (Elev. 98 ft)
2:22 am EDT Apr 16, 2026
10am EDT Apr 16, 2026-6pm EDT Apr 22, 2026
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