National Weather Service

News Headlines

Did you experience recent Tri-State flash flooding events on October 30? Please complete this anonymous short survey to share your experience with NWS New York and researchers.

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Partly Cloudy

47°F

8°C

Humidity	39%
Wind Speed	W 9 mph
Barometer	30.11 in (1019.7 mb)
Dewpoint	23°F (-5°C)
Visibility	10.00 mi
Wind Chill	43°F (6°C)
Last update	18 Nov 11:56 am EST

More Information:

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

Extended Forecast for

Sayville NY

This Afternoon
High: 47 °F
Mostly Sunny
Tonight
Low: 36 °F
Mostly Cloudy
then Chance
Rain
Wednesday
High: 49 °F
Slight Chance
Rain
Wednesday Night
Low: 35 °F
Areas Frost
Thursday
High: 51 °F
Partly Sunny
Thursday Night
Low: 43 °F
Mostly Cloudy
Friday
High: 57 °F
Chance Rain
Friday Night
Low: 41 °F
Chance Rain
Saturday
High: 50 °F
Chance Rain

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 47. West wind 10 to 13 mph.

Tonight

A 40 percent chance of rain after 1am. Increasing clouds, with a low around 36. West wind around 6 mph becoming calm in the evening.

Wednesday

A 20 percent chance of rain before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 49. Calm wind becoming north around 6 mph in the morning.

Wednesday Night

Areas of frost before 1am. Otherwise, mostly cloudy, with a low around 35. Calm wind becoming north around 5 mph after midnight.

Thursday

Partly sunny, with a high near 51. Northeast wind 5 to 7 mph.

Thursday Night

Mostly cloudy, with a low around 43.

Friday

A 40 percent chance of rain. Mostly cloudy, with a high near 57.

Friday Night

A 40 percent chance of rain. Mostly cloudy, with a low around 41.

Saturday

A 30 percent chance of rain before 1pm. Partly sunny, with a high near 50.