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Cold Weather Advisory in Effect for Portions of the Interior Until 10 AM

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

19°F

-7°C

Humidity	49%
Wind Speed	NW 20 G 30 mph
Barometer	29.76 in (1007.8 mb)
Dewpoint	3°F (-16°C)
Visibility	10.00 mi
Wind Chill	3°F (-16°C)
Last update	1 Feb 6:56 pm EST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Port Jefferson NY

Tonight
Low: 16 °F
Decreasing
Clouds and
Blustery
Monday
High: 29 °F
Sunny
Monday Night
Low: 19 °F
Mostly Clear
Tuesday
High: 30 °F
Sunny
Tuesday Night
Low: 24 °F
Mostly Cloudy
Wednesday
High: 30 °F
Partly Sunny
Wednesday Night
Low: 17 °F
Partly Cloudy
Thursday
High: 28 °F
Mostly Sunny
Thursday Night
Low: 17 °F
Mostly Clear

Detailed Forecast

Tonight

Mostly cloudy, then gradually becoming mostly clear, with a low around 16. Wind chill values between zero and 5. Blustery, with a northwest wind 17 to 23 mph.

Monday

Sunny, with a high near 29. Wind chill values between zero and 10. Northwest wind 14 to 17 mph.

Monday Night

Mostly clear, with a low around 19. Wind chill values between 10 and 15. Northwest wind 7 to 10 mph.

Tuesday

Sunny, with a high near 30. Wind chill values between 10 and 20. West wind 6 to 9 mph.

Tuesday Night

Mostly cloudy, with a low around 24. West wind 6 to 8 mph.

Wednesday

Partly sunny, with a high near 30.

Wednesday Night

Partly cloudy, with a low around 17.