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.

Partly Cloudy

22°F

-6°C

Humidity 44%
Wind Speed W 6 mph
Barometer 30.07 in (1018.2 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 28 Jan 12:56 pm EST
Extended Forecast for

Centereach NY

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 23. Wind chill values between 15 and 20. West wind 6 to 8 mph.

    High: 23 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of snow before 10pm, then a slight chance of flurries between 10pm and 1am. Mostly cloudy, with a low around 10. Wind chill values between 5 and 10. West wind around 6 mph. Chance of precipitation is 20%.

    Low: 10 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 22. Wind chill values between zero and 10. West wind 6 to 10 mph.

    High: 22 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 7. Wind chill values between -5 and 5. Northwest wind around 9 mph, with gusts as high as 20 mph.

    Low: 7 °F

    Mostly Clear

  • Friday

    Friday: Sunny and cold, with a high near 18. West wind 8 to 11 mph.

    High: 18 °F

    Cold

  • Friday Night

    Friday Night: Mostly clear, with a low around 5.

    Low: 5 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 21.

    High: 21 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Chance Snow

  • Sunday

    Sunday: A 50 percent chance of snow. Cloudy, with a high near 26. Blustery.

    High: 26 °F

    Chance Snow
    and Blustery

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 23. Wind chill values between 15 and 20. West wind 6 to 8 mph.
Tonight
A slight chance of snow before 10pm, then a slight chance of flurries between 10pm and 1am. Mostly cloudy, with a low around 10. Wind chill values between 5 and 10. West wind around 6 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 22. Wind chill values between zero and 10. West wind 6 to 10 mph.
Thursday Night
Mostly clear, with a low around 7. Wind chill values between -5 and 5. Northwest wind around 9 mph, with gusts as high as 20 mph.
Friday
Sunny and cold, with a high near 18. West wind 8 to 11 mph.
Friday Night
Mostly clear, with a low around 5.
Saturday
Mostly sunny, with a high near 21.
Saturday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 14.
Sunday
A 50 percent chance of snow. Cloudy, with a high near 26. Blustery.
Sunday Night
A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 17. Blustery.
Monday
Mostly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Partly sunny, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Centereach NY
 40.87°N 73.07°W (Elev. 98 ft)
Last Update:
12:32 pm EST Jan 28, 2026
Forecast Valid:
1pm EST Jan 28, 2026-6pm EST Feb 3, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation