



Marine and Coastal Impacts from Imelda; Unsettled Weather in the West
Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Overcast
68°F
20°C
Humidity | 70% |
Wind Speed | Calm |
Barometer | 30.18 in (1021.9 mb) |
Dewpoint | 58°F (14°C) |
Visibility | 10.00 mi |
Last update | 29 Sep 8:56 pm EDT |
Extended Forecast for
Port Jefferson Station NY
Tonight
Low: 62 °F
Cloudy
Tuesday
High: 78 °F
Partly Sunny
Tuesday Night
Low: 53 °F
Partly Cloudy
Wednesday
High: 67 °F
Sunny
Wednesday Night
Low: 51 °F
Mostly Clear
Thursday
High: 64 °F
Sunny
Thursday Night
Low: 51 °F
Mostly Clear
Friday
High: 70 °F
Sunny
Friday Night
Low: 55 °F
Mostly Clear
Detailed Forecast
Tonight
Cloudy, with a low around 62. Calm wind.
Tuesday
Partly sunny, with a high near 78. Northeast wind 5 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 53. Northeast wind 9 to 15 mph.
Wednesday
Sunny, with a high near 67. North wind 13 to 16 mph.
Wednesday Night
Mostly clear, with a low around 51. Northeast wind 10 to 13 mph.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 74.
Saturday Night
Clear, with a low around 58.
Sunday
Sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 60.
Monday
Sunny, with a high near 76.
Additional Forecasts and Information
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ABOUT 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)
8:50 pm EDT Sep 29, 2025
9pm EDT Sep 29, 2025-6pm EDT Oct 6, 2025