Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Overcast
42°F
6°C
| Humidity | 82% |
| Wind Speed | E 13 G 24 mph |
| Barometer | 30.45 in (1031.0 mb) |
| Dewpoint | 37°F (3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 35°F (2°C) |
| Last update | 2 Apr 5:56 pm EDT |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Tonight

Low: 40 °F
Chance Light
Rain and
Patchy FogFriday
High: 60 °F
Areas Fog
then Partly
SunnyFriday Night

Low: 50 °F
Mostly Cloudy
Saturday
High: 62 °F
Partly Sunny
then Slight
Chance
ShowersSaturday Night

Low: 43 °F
Chance
ShowersSunday
High: 59 °F
Showers
Likely then
ShowersSunday Night
Low: 40 °F
Chance
Showers then
Partly CloudyMonday

High: 52 °F
Mostly Sunny
Monday Night

Low: 37 °F
Partly Cloudy
Detailed Forecast
Tonight
A chance of drizzle or light rain, mainly after midnight. Patchy fog after 10pm. Otherwise, cloudy, with a low around 40. East wind 5 to 13 mph. Chance of precipitation is 30%.
Friday
Areas of fog before noon. Otherwise, mostly cloudy, with a high near 60. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 50. Southwest wind 6 to 9 mph, with gusts as high as 21 mph.
Saturday
A 20 percent chance of showers after noon. Partly sunny, with a high near 62. Light and variable wind becoming east 5 to 10 mph in the morning.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 43. East wind 6 to 9 mph, with gusts as high as 20 mph.
Sunday
Showers. High near 59. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A 30 percent chance of showers before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 40.
Monday
Mostly sunny, with a high near 52.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 31.
Wednesday
Sunny, with a high near 46.
Wednesday Night
Mostly clear, with a low around 34.
Thursday
Mostly sunny, with a high near 51.
Additional Forecasts and Information
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ABOUT 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)
2:27 pm EDT Apr 2, 2026
6pm EDT Apr 2, 2026-6pm EDT Apr 9, 2026


