Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy and Breezy

36°F

2°C

Humidity 27%
Wind Speed W 24 G 33 mph
Barometer 30.08 in (1018.7 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 23 Jan 12:56 pm EST
Extended Forecast for

Centereach NY

Cold Weather Advisory January 23, 10:00pm until January 24, 12:00pm
Winter Storm Warning January 25, 03:00am until January 26, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning
  • This Afternoon

    This Afternoon: Partly sunny, with a high near 37. Wind chill values between 20 and 25. West wind around 18 mph, with gusts as high as 29 mph.

    High: 37 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 9. Wind chill values between -5 and 5. Blustery, with a northwest wind 14 to 20 mph.

    Low: 9 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 18. Wind chill values between -10 and zero. Northwest wind 13 to 16 mph.

    High: 18 °F

    Cold

  • Saturday Night

    Saturday Night: A 20 percent chance of snow after 1am.  Cloudy, with a low around 12. Wind chill values between 5 and 10. North wind 3 to 5 mph.

    Low: 12 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: Snow. The snow could be heavy at times.  High near 30. Northeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

    High: 30 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow and sleet before 1am, then snow and sleet, possibly mixed with freezing rain between 1am and 4am, then snow and sleet after 4am. The snow could be heavy at times.  Steady temperature around 28. Blustery.  Chance of precipitation is 100%. Little or no ice accumulation expected.  New snow and sleet accumulation of 1 to 3 inches possible.

    Low: 28 °F

    Wintry Mix
    and Blustery

  • Monday

    Monday: Snow likely, mainly before 1pm.  Cloudy, with a high near 30. Chance of precipitation is 60%.

    High: 30 °F

    Snow Likely

  • Monday Night

    Monday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 22.

    High: 22 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 37. Wind chill values between 20 and 25. West wind around 18 mph, with gusts as high as 29 mph.
Tonight
Partly cloudy, with a low around 9. Wind chill values between -5 and 5. Blustery, with a northwest wind 14 to 20 mph.
Saturday
Mostly sunny and cold, with a high near 18. Wind chill values between -10 and zero. Northwest wind 13 to 16 mph.
Saturday Night
A 20 percent chance of snow after 1am. Cloudy, with a low around 12. Wind chill values between 5 and 10. North wind 3 to 5 mph.
Sunday
Snow. The snow could be heavy at times. High near 30. Northeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.
Sunday Night
Snow and sleet before 1am, then snow and sleet, possibly mixed with freezing rain between 1am and 4am, then snow and sleet after 4am. The snow could be heavy at times. Steady temperature around 28. Blustery. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow and sleet accumulation of 1 to 3 inches possible.
Monday
Snow likely, mainly before 1pm. Cloudy, with a high near 30. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 11.
Tuesday
Mostly sunny, with a high near 22.
Tuesday Night
Partly cloudy, with a low around 10.
Wednesday
Mostly sunny, with a high near 23.
Wednesday Night
Mostly cloudy, with a low around 10.
Thursday
Partly sunny, with a high near 23.
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ABOUT THIS FORECAST

 
Point Forecast:
Centereach NY
 40.87°N 73.07°W (Elev. 98 ft)
12:58 pm EST Jan 23, 2026
1pm EST Jan 23, 2026-6pm EST Jan 29, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database