Heavy Rain and Flash Flooding Possible Over Parts of the Eastern United States

Heavy rainfall is expected over portions of the eastern United States through Thursday. Flooding and flash flooding will be possible in some areas. Click the "Read More" link for excessive rainfall forecasts from the Weather Prediction Center. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

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

Light Drizzle

58°F

14°C

Humidity	93%
Wind Speed	NE 15 G 25 mph
Barometer	30.24 in (1024.1 mb)
Dewpoint	56°F (13°C)
Visibility	8.00 mi
Last update	28 Sep 10:56 pm EDT

More Information:

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

Detailed forecast for

Southwest Suffolk

Overnight

Cloudy with periods of drizzle. Lows in the upper 50s. Northeast winds 15 to 20 mph.

Thursday

Cloudy with occasional drizzle with a slight chance of light rain. Breezy with highs in the lower 60s. Northeast winds 15 to 25 mph. Chance of rain 20 percent.

Thursday Night

Drizzle with light rain likely in the evening... Then rain after midnight. Breezy with lows in the upper 50s. Northeast winds 20 to 25 mph with gusts up to 35 mph. Chance of rain 80 percent.

Friday

Rain. Breezy with highs in the mid 60s. Northeast winds 20 to 25 mph with gusts up to 35 mph. Chance of rain 80 percent.

Friday Night

Rain likely. Lows in the upper 50s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent.

Saturday

Rain likely. Highs in the upper 60s. Chance of rain 60 percent.

Saturday Night

Rain likely. Lows in the lower 60s. Chance of rain 70 percent.

Sunday

Cloudy with a chance of rain. Highs in the lower 70s. Chance of rain 50 percent.

Sunday Night

Mostly cloudy with a 40 percent chance of rain. Lows around 60.