Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Light Rain
43°F
6°C
| Humidity | 86% |
| Wind Speed | N 5 mph |
| Barometer | 30.10 in (1019.2 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 40°F (4°C) |
| Last update | 7 Apr 2:56 am EDT |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Overnight

Low: 39 °F
Chance
ShowersTuesday
High: 52 °F
Partly Sunny
then Mostly
Sunny and
BreezyTuesday Night
Low: 28 °F
Mostly Clear
and Blustery
then ClearWednesday

High: 46 °F
Sunny
Wednesday Night

Low: 30 °F
Mostly Clear
Thursday

High: 50 °F
Mostly Sunny
Thursday Night

Low: 38 °F
Partly Cloudy
Friday

High: 58 °F
Mostly Sunny
Friday Night

Low: 44 °F
Partly Cloudy
Detailed Forecast
Overnight
A 30 percent chance of showers, mainly before 5am. Mostly cloudy, with a low around 39. Southeast wind around 6 mph.
Tuesday
Partly sunny, with a high near 52. Breezy, with a southwest wind 10 to 15 mph becoming northwest 18 to 23 mph in the afternoon. Winds could gust as high as 34 mph.
Tuesday Night
Mostly clear, with a low around 28. Wind chill values between 20 and 25. Blustery, with a north wind 13 to 21 mph.
Wednesday
Sunny, with a high near 46. Wind chill values between 20 and 30 early. North wind 10 to 15 mph becoming southeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 30. South wind 5 to 10 mph becoming light southeast after midnight.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Mostly sunny, with a high near 58.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Sunny, with a high near 58.
Sunday Night
Mostly cloudy, with a low around 45.
Monday
Partly sunny, with a high near 64.
Additional Forecasts and Information
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ABOUT 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)
3:08 am EDT Apr 7, 2026
3am EDT Apr 7, 2026-6pm EDT Apr 13, 2026


