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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.

Fair

13°F

-11°C

Humidity	40%
Wind Speed	N 9 mph
Barometer	30.65 in (1037.9 mb)
Dewpoint	-7°F (-22°C)
Visibility	10.00 mi
Wind Chill	1°F (-17°C)
Last update	25 Jan 12:56 am EST

More Information:

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

Extended Forecast for

2 Miles NNW Stony Brook NY

Winter Storm Warning January 25, 03:00am until January 26, 01:00pm

Click here for hazard details and duration

Winter Storm Warning

Overnight
Low: 13 °F
Chance Snow
Sunday
High: 32 °F
Heavy Snow
then
Snow/Sleet
and Breezy
Sunday Night
Low: 24 °F
Wintry Mix
and Breezy
then Wintry
Mix Likely
Monday
High: 31 °F
Chance Wintry
Mix
Monday Night
Low: 15 °F
Partly Cloudy
and Breezy
then Mostly
Clear
Tuesday
High: 22 °F
Mostly Sunny
Tuesday Night
Low: 12 °F
Mostly Clear
Wednesday
High: 24 °F
Mostly Sunny
Wednesday Night
Low: 13 °F
Mostly Cloudy

Detailed Forecast

Overnight

A 40 percent chance of snow after 4am. Cloudy, with a low around 13. Wind chill values between 5 and 10. Northeast wind around 6 mph.

Sunday

Snow before 4pm, then snow and sleet. The snow could be heavy at times. High near 32. Wind chill values between 5 and 15. Breezy, with a northeast wind 7 to 12 mph increasing to 17 to 22 mph in the afternoon. Chance of precipitation is 100%. New snow and sleet accumulation of 7 to 11 inches possible.

Sunday Night

Sleet, possibly mixed with freezing rain before 4am, then a chance of snow, freezing rain, and sleet. Low around 24. Wind chill values between 15 and 20. Breezy, with a northeast wind 13 to 23 mph, with gusts as high as 34 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

A chance of snow and freezing rain before 4pm, then a slight chance of snow. Cloudy, with a high near 31. Wind chill values between 15 and 20. Northeast wind 8 to 14 mph becoming northwest in the afternoon. Chance of precipitation is 50%.

Monday Night

Partly cloudy, with a low around 15. Breezy, with a west wind 17 to 20 mph, with gusts as high as 30 mph.

Tuesday

Mostly sunny, with a high near 22.

Tuesday Night

Mostly clear, with a low around 12.

Wednesday

Mostly sunny, with a high near 24.

Wednesday Night

Mostly cloudy, with a low around 13.

Thursday

Partly sunny, with a high near 23.