Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
39°F
4°C
| Humidity | 34% |
| Wind Speed | N 15 G 22 mph |
| Barometer | 30.63 in (1037.2 mb) |
| Dewpoint | 13°F (-11°C) |
| Visibility | 10.00 mi |
| Wind Chill | 31°F (-1°C) |
| Last update | 8 Apr 10:56 am EDT |
Extended Forecast for
Islip Terrace NY
Today

High: 47 °F
Sunny
Tonight

Low: 33 °F
Clear then
Patchy FrostThursday

High: 51 °F
Patchy Frost
then SunnyThursday Night

Low: 38 °F
Mostly Clear
then Patchy
FrostFriday

High: 56 °F
Patchy Frost
then SunnyFriday Night

Low: 45 °F
Mostly Cloudy
Saturday

High: 59 °F
Becoming
SunnySaturday Night

Low: 41 °F
Clear
Sunday

High: 55 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 47. Northeast wind 11 to 13 mph becoming southeast in the afternoon.
Tonight
Patchy frost after 1am. Otherwise, mostly clear, with a low around 33. Southeast wind 3 to 7 mph.
Thursday
Patchy frost before 9am. Otherwise, sunny, with a high near 51. Southeast wind 5 to 8 mph.
Thursday Night
Patchy frost after 4am. Otherwise, partly cloudy, with a low around 38. South wind around 5 mph becoming calm after midnight.
Friday
Patchy frost before 7am. Otherwise, sunny, with a high near 56. Calm wind becoming south 5 to 8 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 59.
Saturday Night
Clear, with a low around 41.
Sunday
Sunny, with a high near 55.
Sunday Night
Mostly cloudy, with a low around 45.
Monday
Mostly cloudy, with a high near 62.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
Partly sunny, with a high near 67.
Additional Forecasts and Information
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ABOUT 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)
3:28 am EDT Apr 8, 2026
11am EDT Apr 8, 2026-6pm EDT Apr 14, 2026


