Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
29°F
-2°C
| Humidity | 89% |
| Wind Speed | Calm |
| Barometer | 30.59 in (1035.9 mb) |
| Dewpoint | 26°F (-3°C) |
| Visibility | 10.00 mi |
| Last update | 9 Apr 3:56 am EDT |
Extended Forecast for
Islip Terrace NY
Today
High: 49 °F
Areas Frost
then SunnyTonight
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: 63 °F
Mostly Cloudy
Detailed Forecast
Today
Areas of frost before 8am. Otherwise, sunny, with a high near 49. Light south wind increasing to 8 to 13 mph in the morning.
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 8am. Otherwise, partly sunny, with a high near 56. Light southwest wind becoming south 6 to 11 mph in the morning.
Friday Night
Mostly cloudy, with a low around 43. South wind 8 to 10 mph.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 59. Northwest wind around 9 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 63.
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 Terrace NY
40.75°N 73.18°W (Elev. 30 ft)
40.75°N 73.18°W (Elev. 30 ft)
3:30 am EDT Apr 9, 2026
4am EDT Apr 9, 2026-6pm EDT Apr 15, 2026
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