Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Thunderstorm Rain Fog/Mist
53°F
12°C
| Humidity | 96% |
| Wind Speed | S 18 G 40 mph |
| Barometer | 29.52 in (999.6 mb) |
| Dewpoint | 52°F (11°C) |
| Visibility | 1.50 mi |
| Wind Chill | 48°F (9°C) |
| Last update | 16 Mar 7:56 pm EDT |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Dense Fog Advisory until March 17, 01:00am
Wind Advisory March 16, 08:31pm until March 17, 04:00am
Flood Advisory until March 16, 10:45pm
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 34 °F
Showers and
Areas Dense
FogTuesday
High: 39 °F
Mostly Sunny
Tuesday Night
Low: 24 °F
Partly Cloudy
Wednesday
High: 37 °F
Mostly Sunny
Wednesday Night
Low: 27 °F
Partly Cloudy
Thursday
High: 44 °F
Mostly Sunny
Thursday Night
Low: 33 °F
Mostly Cloudy
Friday
High: 50 °F
Mostly Sunny
Detailed Forecast
Tonight
Showers and possibly a thunderstorm before 2am, then a chance of showers. Areas of dense fog before 2am. Low around 34. Windy, with a south wind 25 to 32 mph becoming west after midnight. Winds could gust as high as 55 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Mostly sunny, with a steady temperature around 39. West wind around 18 mph, with gusts as high as 29 mph.
Tuesday Night
Partly cloudy, with a low around 24. Wind chill values between 15 and 20. Northwest wind 10 to 14 mph.
Wednesday
Mostly sunny, with a high near 37. Wind chill values between 15 and 25. Northwest wind 6 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 27. South wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 44.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Mostly sunny, with a high near 50.
Friday Night
A 50 percent chance of rain after 8pm. Mostly cloudy, with a low around 36.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 50.
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
Basemap Options
Click map to change the forecast location
Loading map...
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)
7:03 pm EDT Mar 16, 2026
8pm EDT Mar 16, 2026-6pm EDT Mar 23, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
