National Weather Service

News Headlines

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79° N Lon: 73.1° W Elev: 98 ft.

A Few Clouds

36°F

2°C

Humidity	57%
Wind Speed	N 8 mph
Barometer	30.30 in (1026.1 mb)
Dewpoint	22°F (-6°C)
Visibility	10.00 mi
Wind Chill	30°F (-1°C)
Last update	24 Dec 7:56 pm EST

More Information:

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

Detailed forecast for

Southwest Suffolk

This Afternoon

Sunny, breezy with highs in the mid 40s. North winds 20 to 25 mph with gusts up to 35 mph.

Tonight

Mostly clear in the evening, then becoming mostly cloudy. Lows in the upper 20s. North winds 10 to 15 mph, becoming west 5 to 10 mph after midnight.

Christmas Day

Mostly cloudy in the morning, then becoming mostly sunny. Highs in the mid 40s. Southwest winds 15 to 20 mph, becoming west in the afternoon.

Thursday Night

Partly cloudy. Lows around 20. North winds 15 to 20 mph with gusts up to 30 mph.

Friday

Partly sunny in the morning, then mostly cloudy with a chance of snow in the afternoon. Highs in the lower 30s. North winds 10 to 15 mph. Chance of snow 30 percent.

Friday Night

Snow. Moderate snow accumulation. Lows in the lower 20s. Chance of snow 90 percent.

Saturday

Cloudy. A chance of snow in the morning. Highs in the mid 30s. Chance of snow 50 percent.

Saturday Night

Mostly cloudy. Lows in the lower 20s.

Sunday

Mostly cloudy. A chance of rain in the afternoon. Highs around 40. Chance of rain 40 percent.

Sunday Night

Rain. Lows in the lower 30s. Chance of rain 90 percent.

Monday

Rain likely, mainly in the morning. Windy with highs in the mid 40s. Chance of rain 60 percent.