Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Light Drizzle Fog
47°F
8°C
| Humidity | 97% |
| Wind Speed | SW 14 mph |
| Barometer | 29.45 in (997.3 mb) |
| Dewpoint | 46°F (8°C) |
| Visibility | 0.25 mi |
| Wind Chill | 41°F (5°C) |
| Last update | 29 Dec 8:56 am EST |
Extended Forecast for
Islip, Long Island Mac Arthur Airport NY
Dense Fog Advisory December 29, 10:00am until December 29, 12:00pm
NOW until 12:00pm Mon
Dense Fog Advisory
Today
High: 52 °F⇓
Rain and
Areas FogTonight
Low: 26 °F
Partly Cloudy
and BreezyTuesday
High: 35 °F
Partly Sunny
and WindyTuesday Night
Low: 24 °F
Mostly Cloudy
and Breezy
then Mostly
CloudyWednesday
High: 38 °F
Partly Sunny
Wednesday Night
Low: 22 °F
Mostly Cloudy
New Year's Day
High: 32 °F
Partly Sunny
Thursday Night
Low: 18 °F
Partly Cloudy
Detailed Forecast
Today
Rain, mainly before 4pm. Areas of fog before 1pm. Temperature rising to near 52 by noon, then falling to around 44 during the remainder of the day. Breezy, with a southwest wind 17 to 24 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Partly cloudy, with a low around 26. Wind chill values between 15 and 20. Breezy, with a west wind around 24 mph, with gusts as high as 43 mph.
Tuesday
Partly sunny, with a high near 35. Wind chill values between 15 and 20. Windy, with a west wind 23 to 26 mph, with gusts as high as 46 mph.
Tuesday Night
Mostly cloudy, with a low around 24. Wind chill values between 15 and 20. Breezy, with a west wind 14 to 20 mph, with gusts as high as 33 mph.
Wednesday
Partly sunny, with a high near 38. West wind 14 to 17 mph, with gusts as high as 28 mph.
Wednesday Night
Mostly cloudy, with a low around 22.
New Year's Day
Partly sunny, with a high near 32.
Thursday Night
Partly cloudy, with a low around 18.
Friday
Mostly sunny, with a high near 31.
Friday Night
Partly cloudy, with a low around 21.
Saturday
Partly sunny, with a high near 36.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 35.
Additional Forecasts and Information
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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)
8:56 am EST Dec 29, 2025
10am EST Dec 29, 2025-6pm EST Jan 4, 2026
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