Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
42°F
6°C
| Humidity | 79% |
| Wind Speed | SE 8 mph |
| Barometer | 30.50 in (1032.8 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 37°F (3°C) |
| Last update | 9 Apr 6:56 pm EDT |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Tonight
Low: 37 °F
Partly Cloudy
then Patchy
FogFriday
High: 55 °F
Patchy Fog
then Mostly
SunnyFriday Night
Low: 43 °F
Mostly Cloudy
Saturday
High: 60 °F
Sunny
Saturday Night
Low: 40 °F
Clear
Sunday
High: 54 °F
Mostly Sunny
Sunday Night
Low: 45 °F
Mostly Cloudy
Monday
High: 64 °F
Mostly Cloudy
Monday Night
Low: 54 °F
Mostly Cloudy
Detailed Forecast
Tonight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 37. South wind 5 to 7 mph becoming calm in the evening.
Friday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 55. Light southwest wind becoming south 8 to 13 mph in the morning.
Friday Night
Mostly cloudy, with a low around 43. Southwest wind 10 to 13 mph.
Saturday
Sunny, with a high near 60. Northwest wind 10 to 16 mph.
Saturday Night
Clear, with a low around 40. North wind around 6 mph.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 45.
Monday
Mostly cloudy, with a high near 64.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Partly sunny, with a high near 70.
Wednesday Night
Mostly cloudy, with a low around 51.
Thursday
Partly sunny, with a high near 65.
Additional Forecasts and Information
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Forecast AreaABOUT 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)
2:47 pm EDT Apr 9, 2026
7pm EDT Apr 9, 2026-6pm EDT Apr 16, 2026
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