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Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Blowing Snow and Breezy

30°F

-1°C

Humidity	82%
Wind Speed	NW 24 G 36 mph
Barometer	29.53 in (999.8 mb)
Dewpoint	25°F (-4°C)
Visibility	4.00 mi
Wind Chill	16°F (-9°C)
Last update	23 Feb 3:56 pm EST

More Information:

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

Extended Forecast for

Great River NY

Coastal Flood Advisory until February 23, 06:00pm

Blizzard Warning February 23, 04:39pm until February 23, 06:00pm

Click here for hazard details and duration

Coastal Flood Advisory

Blizzard Warning

Coastal Flood Advisory until February 23, 06:00pm
Blizzard Warning February 23, 04:39pm until February 23, 06:00pm
NOW: Multiple hazards in effect
Click HERE for Details
This Afternoon
High: 34 °F
Patchy
Blowing Snow
and Breezy
Tonight
Low: 21 °F
Patchy
Blowing Snow
and Blustery
Tuesday
High: 31 °F
Mostly Sunny
Tuesday Night
Low: 20 °F⇑
Partly Cloudy
then Chance
Snow Showers
Wednesday
High: 40 °F
Rain/Snow
Likely
Wednesday Night
Low: 29 °F
Partly Cloudy
Thursday
High: 37 °F
Partly Sunny
then Chance
Rain/Snow
Thursday Night
Low: 28 °F
Snow Likely

Detailed Forecast

This Afternoon

Patchy blowing snow. Cloudy, with a high near 34. Wind chill values between 20 and 25. Breezy, with a northwest wind around 24 mph, with gusts as high as 38 mph.

Tonight

Patchy blowing snow. Cloudy, then gradually becoming partly cloudy, with a low around 21. Wind chill values between 10 and 15. Blustery, with a northwest wind 13 to 21 mph, with gusts as high as 32 mph.

Tuesday

Mostly sunny, with a high near 31. Wind chill values between 10 and 20. Northwest wind 10 to 13 mph, with gusts as high as 23 mph.

Tuesday Night

A chance of snow showers between 1am and 4am, then a chance of snow after 4am. Increasing clouds, with a temperature falling to near 20 by 9pm, then rising to around 32 during the remainder of the night. Wind chill values between 10 and 15. West wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 50%.

Wednesday

Rain and snow likely, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 40. Southwest wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Wednesday Night

Partly cloudy, with a low around 29.

Thursday

A chance of rain and snow after 1pm. Partly sunny, with a high near 37. Chance of precipitation is 50%.

Thursday Night

Snow likely, mainly before 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 70%.

Friday

Mostly sunny, with a high near 39.

Friday Night

Mostly clear, with a low around 28.

Saturday

Mostly sunny, with a high near 41.