Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
45°F
7°C
| Humidity | 61% |
| Wind Speed | S 10 mph |
| Barometer | 30.61 in (1036.5 mb) |
| Dewpoint | 32°F (0°C) |
| Visibility | 10.00 mi |
| Wind Chill | 40°F (4°C) |
| Last update | 9 Apr 11:56 am EDT |
Extended Forecast for
Islip NY
This Afternoon
High: 49 °F
Sunny
Tonight
Low: 38 °F
Mostly Clear
then Patchy
FogFriday
High: 56 °F
Patchy Fog
then Partly
SunnyFriday Night
Low: 43 °F
Mostly Cloudy
Saturday
High: 59 °F
Becoming
SunnySaturday Night
Low: 41 °F
Mostly Clear
Sunday
High: 54 °F
Mostly Sunny
Sunday Night
Low: 44 °F
Mostly Cloudy
Monday
High: 62 °F
Mostly Cloudy
Detailed Forecast
This Afternoon
Sunny, with a high near 49. South wind 9 to 13 mph.
Tonight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 38. South wind 5 to 9 mph becoming light southwest after midnight.
Friday
Patchy fog before 7am. Otherwise, partly sunny, with a high near 56. Light southwest wind becoming south 8 to 13 mph in the morning.
Friday Night
Mostly cloudy, with a low around 43. South wind 8 to 11 mph.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 59. Northwest wind 8 to 10 mph.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 44.
Monday
Mostly cloudy, with a high near 62.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
Partly sunny, with a high near 69.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
Partly sunny, with a high near 68.
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)
11:32 am EDT Apr 9, 2026
12pm EDT Apr 9, 2026-6pm EDT Apr 15, 2026
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