Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
41°F
5°C
| Humidity | 82% |
| Wind Speed | S 9 mph |
| Barometer | 30.48 in (1032.3 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 35°F (2°C) |
| Last update | 9 Apr 8:56 pm EDT |
Extended Forecast for
Islip NY
Tonight
Low: 38 °F
Partly Cloudy
then Patchy
FogFriday
High: 54 °F
Patchy Fog
then Mostly
SunnyFriday Night
Low: 44 °F
Mostly Cloudy
Saturday
High: 59 °F
Sunny
Saturday Night
Low: 41 °F
Clear
Sunday
High: 53 °F
Mostly Sunny
Sunday Night
Low: 45 °F
Mostly Cloudy
Monday
High: 63 °F
Mostly Cloudy
Monday Night
Low: 53 °F
Mostly Cloudy
Detailed Forecast
Tonight
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 38. Light south wind.
Friday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 54. Light southwest wind becoming south 6 to 11 mph in the morning.
Friday Night
Mostly cloudy, with a low around 44. South wind 7 to 13 mph.
Saturday
Sunny, with a high near 59. Northwest wind 11 to 13 mph.
Saturday Night
Clear, with a low around 41. North wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 53.
Sunday Night
Mostly cloudy, with a low around 45.
Monday
Mostly cloudy, with a high near 63.
Monday Night
Mostly cloudy, with a low around 53.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
Partly sunny, with a high near 69.
Wednesday Night
Mostly cloudy, with a low around 51.
Thursday
Mostly cloudy, with a high near 63.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Islip NY
40.73°N 73.22°W (Elev. 7 ft)
40.73°N 73.22°W (Elev. 7 ft)
2:47 pm EDT Apr 9, 2026
9pm EDT Apr 9, 2026-6pm EDT Apr 16, 2026
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