National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

47°F

8°C

Humidity 80%
Wind Speed W 20 G 32 mph
Barometer 29.32 in (993.0 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 29 Dec 4:56 pm EST
Extended Forecast for

Centereach NY

Wind Advisory until December 30, 06:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until December 30, 06:00pm

    NOW until 6:00pm Tue

    Wind Advisory

  • This Afternoon

    High: 39 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 25. Wind chill values between 15 and 25. West wind 15 to 17 mph, with gusts as high as 41 mph.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 32. Wind chill values between 15 and 20. West wind around 18 mph, with gusts as high as 47 mph.

    High: 32 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 23. Wind chill values between 15 and 20. West wind 10 to 15 mph, with gusts as high as 33 mph.

    Low: 23 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 34. West wind 10 to 14 mph, with gusts as high as 25 mph.

    High: 34 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy
    then Chance
    Snow

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Partly sunny, with a steady temperature around 39. West wind around 15 mph, with gusts as high as 36 mph.
Tonight
Partly cloudy, with a low around 25. Wind chill values between 15 and 25. West wind 15 to 17 mph, with gusts as high as 41 mph.
Tuesday
Mostly cloudy, with a high near 32. Wind chill values between 15 and 20. West wind around 18 mph, with gusts as high as 47 mph.
Tuesday Night
Mostly cloudy, with a low around 23. Wind chill values between 15 and 20. West wind 10 to 15 mph, with gusts as high as 33 mph.
Wednesday
Partly sunny, with a high near 34. West wind 10 to 14 mph, with gusts as high as 25 mph.
Wednesday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 22.
New Year's Day
Mostly sunny, with a high near 30.
Thursday Night
Partly cloudy, with a low around 18.
Friday
Partly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Partly sunny, with a high near 34.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 33.
Sunday Night
Mostly cloudy, with a low around 22.
Monday
Mostly cloudy, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Centereach NY
 40.87°N 73.07°W (Elev. 98 ft)
Last Update:
3:54 pm EST Dec 29, 2025
Forecast Valid:
5pm EST Dec 29, 2025-6pm EST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation