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.

Overcast

13°F

-11°C

Humidity	38%
Wind Speed	N 10 mph
Barometer	30.67 in (1038.6 mb)
Dewpoint	-8°F (-22°C)
Visibility	10.00 mi
Wind Chill	0°F (-18°C)
Last update	24 Jan 11:56 pm EST

More Information:

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

Extended Forecast for

Brentwood NY

Winter Storm Warning January 25, 03:00am until January 26, 06:00pm

Click here for hazard details and duration

Winter Storm Warning

Overnight
Low: 12 °F
Chance Snow
Sunday
High: 32 °F
Heavy Snow
then
Snow/Sleet
Sunday Night
Low: 28 °F
Wintry Mix
Monday
High: 29 °F⇓
Snow Likely
Monday Night
Low: 12 °F
Partly Cloudy
Tuesday
High: 21 °F
Mostly Sunny
Tuesday Night
Low: 9 °F
Partly Cloudy
Wednesday
High: 23 °F
Mostly Sunny
Wednesday Night
Low: 11 °F
Mostly Cloudy

Detailed Forecast

Overnight

A 40 percent chance of snow, mainly after 4am. Cloudy, with a low around 12. Wind chill values between 5 and 10. North wind 3 to 5 mph.

Sunday

Snow before 1pm, then snow and sleet. The snow and sleet could be heavy at times. High near 32. Wind chill values between 5 and 15. Northeast wind 6 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 6 to 10 inches possible.

Sunday Night

Freezing rain and sleet before 1am, then freezing rain and sleet likely, possibly mixed with snow between 1am and 4am, then snow likely after 4am. The sleet could be heavy at times. Steady temperature around 28. Wind chill values between 15 and 20. Northeast wind 9 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of 1 to 3 inches possible.

Monday

Snow likely, mainly before 7am. Cloudy, with a temperature rising to near 29 by noon, then falling to around 25 during the remainder of the day. Wind chill values between 15 and 20. North wind 7 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Monday Night

Partly cloudy, with a low around 12. West wind around 15 mph, with gusts as high as 28 mph.

Tuesday

Mostly sunny, with a high near 21.

Tuesday Night

Partly cloudy, with a low around 9.

Wednesday

Mostly sunny, with a high near 23.

Wednesday Night

Mostly cloudy, with a low around 11.

Thursday

Partly sunny, with a high near 22.