Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
56°F
13°C
| Humidity | 93% |
| Wind Speed | E 7 mph |
| Barometer | 30.29 in (1025.7 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Last update | 4 Oct 12:56 am EDT |
Extended Forecast for
Port Jefferson Station NY
Overnight
Low: 55 °F
Mostly Clear
Sunday
High: 62 °F
Partly Sunny
then Chance
ShowersSunday Night
Low: 56 °F
Chance
ShowersMonday
High: 67 °F
Becoming
SunnyMonday Night
Low: 49 °F
Clear
Tuesday
High: 59 °F
Sunny
Tuesday Night
Low: 49 °F
Clear
Wednesday
High: 62 °F
Sunny
Wednesday Night
Low: 55 °F
Mostly Clear
Detailed Forecast
Overnight
Mostly clear, with a low around 55. East wind around 8 mph.
Sunday
A 50 percent chance of showers after 2pm. Increasing clouds, with a high near 62. East wind 9 to 11 mph.
Sunday Night
A 30 percent chance of showers, mainly before 11pm. Cloudy, with a low around 56. East wind around 6 mph becoming calm in the evening.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 67. Northwest wind 6 to 15 mph.
Monday Night
Clear, with a low around 49. Northwest wind 13 to 15 mph.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Clear, with a low around 49.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 55.
Friday
Sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 65.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Port Jefferson Station NY
40.93°N 73.06°W (Elev. 161 ft)
40.93°N 73.06°W (Elev. 161 ft)
2:19 pm EDT Oct 3, 2026
1am EDT Oct 4, 2026-6pm EDT Oct 10, 2026
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