Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fog and Breezy
54°F
12°C
| Humidity | 97% |
| Wind Speed | S 22 G 35 mph |
| Barometer | 29.60 in (1002.2 mb) |
| Dewpoint | 53°F (12°C) |
| Visibility | 0.25 mi |
| Wind Chill | 49°F (9°C) |
| Last update | 16 Mar 4:56 pm EDT |
Extended Forecast for
Islip Terrace NY
Wind Advisory March 16, 05:59pm until March 17, 04:00am
Dense Fog Advisory until March 17, 01:00am
NOW: Multiple hazards in effect

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This Afternoon

High: 57 °F
Showers and
Areas FogTonight

Low: 34 °F
Showers and
Areas FogTuesday

High: 43 °F
Mostly Sunny
Tuesday Night

Low: 24 °F
Mostly Clear
Wednesday

High: 37 °F
Increasing
CloudsWednesday Night

Low: 28 °F
Partly Cloudy
Thursday

High: 44 °F
Mostly Sunny
Thursday Night

Low: 33 °F
Mostly Cloudy
Detailed Forecast
This Afternoon
Showers and possibly a thunderstorm. Areas of fog. High near 57. Breezy, with a south wind around 20 mph, with gusts as high as 41 mph. Chance of precipitation is 90%.
Tonight
Showers and possibly a thunderstorm before 2am, then a chance of showers. Areas of fog before 2am. Low around 34. Breezy, with a south wind 16 to 22 mph becoming west after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Mostly sunny, with a high near 43. West wind around 14 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 24. Northwest wind 7 to 9 mph, with gusts as high as 22 mph.
Wednesday
Increasing clouds, with a high near 37. Northwest wind around 6 mph.
Wednesday Night
Partly cloudy, with a low around 28.
Thursday
Mostly sunny, with a high near 44.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Partly sunny, with a high near 49.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 36.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 48.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 34.
Sunday
Mostly cloudy, with a high near 47.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 46.
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)
3:44 pm EDT Mar 16, 2026
5pm EDT Mar 16, 2026-6pm EDT Mar 23, 2026



