Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Overcast and Breezy
54°F
12°C
| Humidity | 93% |
| Wind Speed | S 21 G 32 mph |
| Barometer | 29.65 in (1004.1 mb) |
| Dewpoint | 52°F (11°C) |
| Visibility | 7.00 mi |
| Wind Chill | 49°F (9°C) |
| Last update | 16 Mar 2:56 pm EDT |
Extended Forecast for
2 Miles NNW Stony Brook NY
Wind Advisory until March 17, 04:00am
NOW until 4:00am Tue

Wind Advisory
This Afternoon

High: 59 °F
Showers and
Areas FogTonight

Low: 35 °F
Showers and
Areas FogTuesday

High: 43 °F
Sunny
Tuesday Night

Low: 26 °F
Partly Cloudy
Wednesday

High: 38 °F
Mostly Sunny
Wednesday Night

Low: 30 °F
Partly Cloudy
Thursday

High: 44 °F
Mostly Sunny
Thursday Night

Low: 35 °F
Mostly Cloudy
Detailed Forecast
This Afternoon
Showers and possibly a thunderstorm. Areas of fog. High near 59. Breezy, with a south wind around 23 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 2am, then a chance of showers. Areas of fog before 2am. Low around 35. Windy, with a south wind 23 to 31 mph becoming west after midnight. Winds could gust as high as 49 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Sunny, with a high near 43. Wind chill values between 25 and 35. West wind around 18 mph.
Tuesday Night
Partly cloudy, with a low around 26. Wind chill values between 20 and 25. West wind 13 to 15 mph.
Wednesday
Mostly sunny, with a high near 38. Northwest wind 5 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
Mostly sunny, with a high near 44.
Thursday Night
Mostly cloudy, with a low around 35.
Friday
Mostly sunny, with a high near 50.
Friday Night
A 50 percent chance of rain after 8pm. Mostly cloudy, with a low around 37.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 49.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 35.
Sunday
Mostly cloudy, with a high near 47.
Sunday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 47.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles NNW Stony Brook NY
40.92°N 73.15°W (Elev. 36 ft)
40.92°N 73.15°W (Elev. 36 ft)
3:44 pm EDT Mar 16, 2026
3pm EDT Mar 16, 2026-6pm EDT Mar 23, 2026



