Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
66°F
19°C
| Humidity | 75% |
| Wind Speed | Calm |
| Barometer | 30.23 in (1023.5 mb) |
| Dewpoint | 58°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 10 Aug 12:56 am EDT |
Extended Forecast for
5 Miles SSE West Sayville NY
Overnight
Low: 66 °F
Patchy Fog
Sunday
High: 79 °F
Patchy Fog
then SunnySunday Night
Low: 67 °F
Mostly Clear
Monday
High: 78 °F
Sunny
Monday Night
Low: 72 °F
Mostly Clear
Tuesday
High: 79 °F
Sunny
Tuesday Night
Low: 73 °F
Mostly Clear
Wednesday
High: 80 °F
Sunny
Wednesday Night
Low: 74 °F
Mostly Cloudy
Detailed Forecast
Overnight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 66. Calm wind.
Sunday
Patchy fog before 7am. Otherwise, sunny, with a high near 79. Calm wind becoming south 5 to 8 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 67. Southwest wind around 8 mph.
Monday
Sunny, with a high near 78. Southwest wind 6 to 10 mph.
Monday Night
Mostly clear, with a low around 72. Southwest wind around 10 mph.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Mostly cloudy, with a low around 74.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 73.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 71.
Saturday
Mostly sunny, with a high near 77.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles SSE West Sayville NY
40.67°N 73.06°W (Elev. 0 ft)
40.67°N 73.06°W (Elev. 0 ft)
6:26 pm EDT Aug 9, 2025
1am EDT Aug 10, 2025-6pm EDT Aug 16, 2025
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