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Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Partly Cloudy

51°F

11°C

Humidity	43%
Wind Speed	W 10 mph
Barometer	29.99 in (1015.5 mb)
Dewpoint	29°F (-2°C)
Visibility	10.00 mi
Wind Chill	47°F (8°C)
Last update	27 Nov 12:56 pm EST

More Information:

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

Extended Forecast for

Port Jefferson NYSimilar City Names

This Afternoon
High: 50 °F
Partly Sunny
Tonight
Low: 42 °F
Mostly Cloudy
then Chance
Rain
Thanksgiving Day
High: 51 °F
Rain
Thursday Night
Low: 38 °F
Slight Chance
Rain
Friday
High: 47 °F
Mostly Sunny
Friday Night
Low: 33 °F
Partly Cloudy
Saturday
High: 43 °F
Mostly Sunny
Saturday Night
Low: 29 °F
Partly Cloudy
Sunday
High: 39 °F
Partly Sunny

Detailed Forecast

This Afternoon

Partly sunny, with a high near 50. West wind 8 to 11 mph.

Tonight

A 30 percent chance of rain, mainly after 3am. Cloudy, with a low around 42. West wind around 5 mph becoming light and variable in the evening.

Thanksgiving Day

Rain. High near 51. East wind 8 to 14 mph becoming northwest in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Thursday Night

A 20 percent chance of rain before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 38. Northwest wind 14 to 18 mph.

Friday

Mostly sunny, with a high near 47. Northwest wind 9 to 11 mph.

Friday Night

Partly cloudy, with a low around 33.

Saturday

Mostly sunny, with a high near 43.

Saturday Night

Partly cloudy, with a low around 29.

Sunday

Partly sunny, with a high near 39.