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 Drizzle

48°F

9°C

Humidity	96%
Wind Speed	E 8 mph
Barometer	29.76 in (1007.6 mb)
Dewpoint	47°F (8°C)
Visibility	0.50 mi
Wind Chill	44°F (7°C)
Last update	19 Apr 6:56 am EDT

More Information:

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

Extended Forecast for

Head of the Harbor NY

Freeze Watch April 21, 12:00am until April 21, 09:00am

Click here for hazard details and duration

Freeze Watch

Today
High: 51 °F⇓
Showers and
Patchy Fog
Tonight
Low: 39 °F
Chance
Showers then
Mostly Clear
Monday
High: 52 °F
Chance
Showers
Monday Night
Low: 34 °F
Partly Cloudy
Tuesday
High: 53 °F
Sunny
Tuesday Night
Low: 41 °F
Increasing
Clouds
Wednesday
High: 59 °F
Partly Sunny
Wednesday Night
Low: 45 °F
Partly Cloudy
Thursday
High: 66 °F
Mostly Sunny

Detailed Forecast

Today

Showers, mainly before 5pm. Patchy fog before 11am. Temperature rising to near 51 by 9am, then falling to around 46 during the remainder of the day. Southeast wind 5 to 15 mph becoming northwest in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight

A 30 percent chance of showers before 8pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 39. West wind 5 to 7 mph.

Monday

A 30 percent chance of showers. Partly sunny, with a high near 52. Northwest wind 6 to 9 mph.

Monday Night

Partly cloudy, with a low around 34. North wind around 10 mph.

Tuesday

Sunny, with a high near 53. North wind around 7 mph becoming southwest in the afternoon.

Tuesday Night

Increasing clouds, with a low around 41.

Wednesday

Partly sunny, with a high near 59.