Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Overcast
64°F
18°C
| Humidity | 90% |
| Wind Speed | SW 8 mph |
| Barometer | 30.07 in (1018.3 mb) |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 25 May 12:56 pm EDT |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Memorial Day
High: 70 °F
Slight Chance
ShowersTonight
Low: 59 °F
Mostly Cloudy
Tuesday
High: 79 °F
Partly Sunny
Tuesday Night
Low: 60 °F
Mostly Cloudy
Wednesday
High: 82 °F
Partly Sunny
Wednesday Night
Low: 63 °F
Mostly Cloudy
Thursday
High: 77 °F
Sunny
Thursday Night
Low: 56 °F
Mostly Clear
Friday
High: 74 °F
Mostly Sunny
Detailed Forecast
Memorial Day
A 20 percent chance of showers before 2pm. Cloudy, with a high near 70. Southwest wind around 7 mph.
Tonight
Mostly cloudy, with a low around 59. Calm wind.
Tuesday
Partly sunny, with a high near 79. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 60. Southwest wind around 5 mph.
Wednesday
Partly sunny, with a high near 82. Southwest wind 5 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 63.
Thursday
Sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 56.
Friday
Mostly sunny, with a high near 74.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 72.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Islip, Long Island Mac Arthur Airport NY
40.8°N 73.09°W (Elev. 98 ft)
40.8°N 73.09°W (Elev. 98 ft)
11:27 am EDT May 25, 2026
1pm EDT May 25, 2026-6pm EDT May 31, 2026
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