Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
60°F
16°C
| Humidity | 75% |
| Wind Speed | SW 10 mph |
| Barometer | 29.92 in (1013.0 mb) |
| Dewpoint | 52°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 7 Oct 9:56 pm EDT |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Tonight

Low: 58 °F
Mostly Clear
Thursday

High: 73 °F
Sunny
Thursday Night

Low: 51 °F
Mostly Clear
Friday

High: 69 °F
Sunny
Friday Night

Low: 50 °F
Mostly Clear
Saturday

High: 69 °F
Sunny
Saturday Night

Low: 58 °F
Partly Cloudy
Sunday

High: 67 °F
Showers
Sunday Night

Low: 61 °F
Showers
Detailed Forecast
Tonight
Mostly clear, with a low around 58. Southwest wind around 13 mph.
Thursday
Sunny, with a high near 73. West wind 13 to 15 mph.
Thursday Night
Mostly clear, with a low around 51. Northwest wind 6 to 9 mph.
Friday
Sunny, with a high near 69. West wind 8 to 13 mph.
Friday Night
Mostly clear, with a low around 50. Northwest wind 3 to 7 mph.
Saturday
Sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Showers. High near 67. Chance of precipitation is 90%.
Sunday Night
Showers, with thunderstorms also possible after 2am. Low around 61. Chance of precipitation is 80%.
Columbus Day
Showers likely and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 57.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 67.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 47. Breezy.
Wednesday
Partly sunny, with a high near 59. Breezy.
Additional Forecasts and Information
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ABOUT THIS FORECAST
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)
2:28 pm EDT Oct 7, 2026
10pm EDT Oct 7, 2026-6pm EDT Oct 14, 2026


