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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.
A Few Clouds
86°F
30°C
| Humidity | 51% |
| Wind Speed | W 16 G 22 mph |
| Barometer | 29.95 in (1013.9 mb) |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Heat Index | 88°F (31°C) |
| Last update | 20 May 9:56 am EDT |
Extended Forecast for
Sayville NY
Today
High: 80 °F
Sunny then
Chance
T-stormsTonight
Low: 57 °F
Showers
Likely then
Chance
ShowersThursday
High: 66 °F
Showers
LikelyThursday Night
Low: 52 °F
Mostly Cloudy
Friday
High: 63 °F
Partly Sunny
Friday Night
Low: 50 °F
Cloudy then
Chance
ShowersSaturday
High: 60 °F
Showers
Saturday Night
Low: 51 °F
Showers
Sunday
High: 62 °F
Showers
Likely
Detailed Forecast
Today
A 30 percent chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 80. Southwest wind 10 to 14 mph.
Tonight
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 57. Light and variable wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, mainly before 11am. Mostly cloudy, with a high near 66. North wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly cloudy, with a low around 52. Light and variable wind.
Friday
Partly sunny, with a high near 63. Northeast wind 8 to 11 mph.
Friday Night
A 50 percent chance of showers after 2am. Cloudy, with a low around 50.
Saturday
Showers, mainly after 8am. High near 60. Chance of precipitation is 80%.
Saturday Night
Showers. Low around 51. Chance of precipitation is 80%.
Sunday
Showers likely, mainly before 2pm. Cloudy, with a high near 62. Chance of precipitation is 70%.
Sunday Night
A 50 percent chance of showers. Cloudy, with a low around 53.
Memorial Day
A 50 percent chance of showers. Mostly cloudy, with a high near 67.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 56.
Tuesday
Mostly cloudy, with a high near 71.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Sayville NY
40.73°N 73.07°W (Elev. 16 ft)
40.73°N 73.07°W (Elev. 16 ft)
2:20 am EDT May 20, 2026
10am EDT May 20, 2026-6pm EDT May 26, 2026
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