Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
A Few Clouds
49°F
9°C
| Humidity | 93% |
| Wind Speed | S 6 mph |
| Barometer | 30.04 in (1017.4 mb) |
| Dewpoint | 47°F (8°C) |
| Visibility | 9.00 mi |
| Wind Chill | 46°F (8°C) |
| Last update | 10 Mar 10:56 am EDT |
Extended Forecast for
Setauket-East Setauket NY
Today

High: 64 °F
Sunny
Tonight

Low: 40 °F
Partly Cloudy
Wednesday

High: 60 °F
Partly Sunny
Wednesday Night

Low: 48 °F
Chance
ShowersThursday
High: 48 °F⇓
Chance Rain
then Chance
Rain/SnowThursday Night
Low: 30 °F
Chance
Rain/Snow
then Mostly
ClearFriday

High: 45 °F
Increasing
CloudsFriday Night

Low: 35 °F
Mostly Cloudy
Saturday

High: 47 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 64. South wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 40. South wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 60. South wind 3 to 8 mph.
Wednesday Night
A chance of rain before 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 48. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Thursday
A chance of rain before 5pm, then a chance of rain and snow showers. Mostly cloudy, with a temperature falling to around 42 by 5pm. Northwest wind 13 to 15 mph. Chance of precipitation is 50%.
Thursday Night
A chance of rain and snow showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 30. Chance of precipitation is 30%.
Friday
Increasing clouds, with a high near 45.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
Cloudy, with a high near 50.
Sunday Night
Rain. Low around 40. Chance of precipitation is 80%.
Monday
Rain. High near 51. Chance of precipitation is 80%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Setauket-East Setauket NY
40.92°N 73.12°W (Elev. 112 ft)
40.92°N 73.12°W (Elev. 112 ft)
10:53 am EDT Mar 10, 2026
11am EDT Mar 10, 2026-6pm EDT Mar 16, 2026


