Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Overcast
35°F
2°C
| Humidity | 76% |
| Wind Speed | S 6 mph |
| Barometer | 29.83 in (1010.1 mb) |
| Dewpoint | 28°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 30°F (-1°C) |
| Last update | 10 Feb 8:56 pm EST |
Extended Forecast for
Port Jefferson NY
Winter Weather Advisory until February 11, 06:00am
NOW until 6:00am Wed
Winter Weather Advisory
Tonight
Low: 32 °F
Rain/Freezing
RainWednesday
High: 38 °F
Sunny
Wednesday Night
Low: 24 °F
Partly Cloudy
Thursday
High: 33 °F
Sunny
Thursday Night
Low: 19 °F
Partly Cloudy
Friday
High: 33 °F
Sunny
Friday Night
Low: 25 °F
Mostly Cloudy
Saturday
High: 38 °F
Mostly Sunny
Detailed Forecast
Tonight
Rain or freezing rain, becoming all freezing rain after 3am, then gradually ending. Steady temperature around 32. Wind chill values between 25 and 30. Light and variable wind becoming west around 5 mph after midnight. Chance of precipitation is 90%. Total nighttime ice accumulation of less than a 0.1 of an inch possible.
Wednesday
Sunny, with a high near 38. Wind chill values between 25 and 30. West wind 7 to 17 mph, with gusts as high as 29 mph.
Wednesday Night
Partly cloudy, with a low around 24. Wind chill values between 15 and 20. West wind around 16 mph, with gusts as high as 26 mph.
Thursday
Sunny, with a high near 33. Wind chill values between 10 and 20. Northwest wind around 17 mph, with gusts as high as 28 mph.
Thursday Night
Partly cloudy, with a low around 19. Northwest wind 8 to 15 mph.
Friday
Sunny, with a high near 33.
Friday Night
Mostly cloudy, with a low around 25.
Saturday
Mostly sunny, with a high near 38.
Saturday Night
Mostly clear, with a low around 25.
Sunday
Partly sunny, with a high near 37.
Sunday Night
A chance of rain and snow. Cloudy, with a low around 30. Chance of precipitation is 40%.
Washington's Birthday
A chance of rain and snow. Partly sunny, with a high near 40. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 40.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Port Jefferson NY
40.93°N 73.06°W (Elev. 161 ft)
40.93°N 73.06°W (Elev. 161 ft)
1:06 pm EST Feb 10, 2026
9pm EST Feb 10, 2026-6pm EST Feb 17, 2026
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