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Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
79°F
26°C
| Humidity | 82% |
| Wind Speed | S 14 G 22 mph |
| Barometer | 29.99 in (1015.2 mb) |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 82°F (28°C) |
| Last update | 2 Aug 10:56 am EDT |
Extended Forecast for
East Setauket NY
Today
High: 84 °F
Chance
ShowersTonight
Low: 72 °F
Showers
LikelyMonday
High: 82 °F
Showers
Monday Night
Low: 69 °F
Showers
Likely then
Chance
ShowersTuesday
High: 84 °F
Mostly Sunny
Tuesday Night
Low: 70 °F
Mostly Cloudy
Wednesday
High: 84 °F
Mostly Sunny
Wednesday Night
Low: 72 °F
Partly Cloudy
Thursday
High: 85 °F
Mostly Sunny
Detailed Forecast
Today
A 30 percent chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 84. South wind around 11 mph.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Cloudy, with a low around 72. South wind 8 to 13 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and possibly a thunderstorm. High near 82. Southwest wind 11 to 14 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 69. Southwest wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Mostly sunny, with a high near 84. North wind around 7 mph becoming south in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 70.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
A chance of showers between 8pm and 2am. Partly cloudy, with a low around 73. Chance of precipitation is 40%.
Friday
A 30 percent chance of showers. Mostly sunny, with a high near 85.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 72.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 85.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
East Setauket NY
40.94°N 73.11°W (Elev. 52 ft)
40.94°N 73.11°W (Elev. 52 ft)
7:44 am EDT Aug 2, 2026
11am EDT Aug 2, 2026-6pm EDT Aug 8, 2026
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