National Weather Service

News Headlines

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Light Rain

54°F

12°C

Humidity	97%
Wind Speed	S 18 G 38 mph
Barometer	29.48 in (998.1 mb)
Dewpoint	53°F (12°C)
Visibility	7.00 mi
Wind Chill	49°F (9°C)
Last update	16 Mar 8:56 pm EDT

More Information:

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

Extended Forecast for

Brentwood NY

Dense Fog Advisory until March 17, 01:00am

Wind Advisory March 16, 09:34pm until March 17, 04:00am

Click here for hazard details and duration

Dense Fog Advisory

Wind Advisory

Dense Fog Advisory until March 17, 01:00am
Wind Advisory March 16, 09:34pm until March 17, 04:00am
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 34 °F
Showers and
Areas Dense
Fog
Tuesday
High: 43 °F
Mostly Sunny
Tuesday Night
Low: 24 °F
Partly Cloudy
Wednesday
High: 37 °F
Increasing
Clouds
Wednesday Night
Low: 28 °F
Partly Cloudy
Thursday
High: 44 °F
Mostly Sunny
Thursday Night
Low: 34 °F
Mostly Cloudy
Friday
High: 50 °F
Mostly Sunny

Detailed Forecast

Tonight

Showers and possibly a thunderstorm before 2am, then a chance of showers. Areas of dense fog before 2am. Low around 34. Windy, with a south wind 22 to 29 mph becoming west after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday

Mostly sunny, with a high near 43. West wind around 15 mph, with gusts as high as 26 mph.

Tuesday Night

Partly cloudy, with a low around 24. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.

Wednesday

Increasing clouds, with a high near 37. Wind chill values between 15 and 25. Northwest wind around 6 mph.

Wednesday Night

Partly cloudy, with a low around 28. South wind around 5 mph becoming calm in the evening.

Thursday

Mostly sunny, with a high near 44.

Thursday Night

Mostly cloudy, with a low around 34.