Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Light Snow Fog/Mist
25°F
-4°C
| Humidity | 92% |
| Wind Speed | W 5 mph |
| Barometer | 29.54 in (1000.3 mb) |
| Dewpoint | 23°F (-5°C) |
| Visibility | 1.75 mi |
| Wind Chill | 19°F (-7°C) |
| Last update | 7 Feb 1:56 am EST |
Extended Forecast for
Port Jefferson NY
Wind Advisory February 7, 09:00am until February 8, 12:00am
Extreme Cold Warning February 7, 01:00pm until February 8, 01:00pm
Overnight
Low: 25 °F
Snow
Saturday
High: 23 °F⇓
Chance Snow
and WindySaturday Night
Low: 5 °F
Decreasing
Clouds and
WindySunday
High: 21 °F
Sunny and
BlusterySunday Night
Low: 10 °F
Mostly Clear
Monday
High: 26 °F
Sunny
Monday Night
Low: 16 °F
Partly Cloudy
Tuesday
High: 32 °F
Partly Sunny
Tuesday Night
Low: 23 °F
Mostly Cloudy
Detailed Forecast
Overnight
Snow. Steady temperature around 25. Wind chill values between 15 and 20. West wind around 7 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
A 50 percent chance of snow. Cloudy, with a temperature falling to around 14 by noon. Wind chill values between -5 and 5. Windy, with a northwest wind 17 to 22 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 46 mph.
Saturday Night
Cloudy, then gradually becoming partly cloudy, with a low around 5. Wind chill values between -10 and -15. Windy, with a northwest wind 27 to 32 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 47 mph.
Sunday
Sunny, with a high near 21. Wind chill values between -5 and -15. Blustery, with a northwest wind 20 to 22 mph.
Sunday Night
Mostly clear, with a low around 10. Northwest wind 10 to 17 mph.
Monday
Sunny, with a high near 26.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Partly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 23.
Wednesday
Partly sunny, with a high near 37.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Partly sunny, with a high near 32.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Mostly sunny, with a high near 32.
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)
1:33 am EST Feb 7, 2026
2am EST Feb 7, 2026-6pm EST Feb 13, 2026
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