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Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

66°F

19°C

Humidity	75%
Wind Speed	SE 12 mph
Barometer	30.01 in (1016.2 mb)
Dewpoint	58°F (14°C)
Visibility	10.00 mi
Last update	13 Oct 10:56 am EDT

More Information:

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

Extended Forecast for

Port Jefferson NY

Today
High: 68 °F
Partly Sunny
Tonight
Low: 63 °F
Partly Cloudy
Wednesday
High: 76 °F
Mostly Sunny
Wednesday Night
Low: 55 °F
Partly Cloudy
Thursday
High: 63 °F
Sunny
Thursday Night
Low: 51 °F
Partly Cloudy
then Showers
Likely
Friday
High: 68 °F
Showers
Friday Night
Low: 44 °F
Breezy.
Showers
Likely then
Partly Cloudy
Saturday
High: 53 °F
Sunny and
Breezy

Detailed Forecast

Today

Partly sunny, with a high near 68. South wind 7 to 9 mph.

Tonight

Partly cloudy, with a low around 63. Southwest wind around 10 mph, with gusts as high as 20 mph.

Wednesday

Mostly sunny, with a high near 76. West wind around 10 mph.

Wednesday Night

Partly cloudy, with a low around 55. North wind 6 to 10 mph.

Thursday

Sunny, with a high near 63. North wind 5 to 10 mph.

Thursday Night

Showers likely after 2am. Increasing clouds, with a low around 51. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday

Showers. High near 68. Chance of precipitation is 90%.

Friday Night

Showers likely before 8pm. Partly cloudy, with a low around 44. Breezy. Chance of precipitation is 60%.

Saturday

Sunny, with a high near 53. Breezy.

Saturday Night

Mostly clear, with a low around 39.

Sunday

Sunny, with a high near 54.

Sunday Night

Mostly clear, with a low around 44.