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

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

72°F

22°C

Humidity 79%
Wind Speed S 13 G 23 mph
Barometer 30.07 in (1018.3 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 7 Oct 7:56 pm EDT
Extended Forecast for

Centereach NY

  • Tonight

    Tonight: Showers likely, mainly after 4am. Mostly cloudy, with a steady temperature around 67. South wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 67 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 2pm, then a chance of showers. Steady temperature around 67. Southwest wind 11 to 14 mph becoming north in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 67 °F

    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. North wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 61. North wind 11 to 14 mph.

    High: 61 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 44. Northeast wind around 7 mph.

    Low: 44 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers likely, mainly after 4am. Mostly cloudy, with a steady temperature around 67. South wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Showers and possibly a thunderstorm before 2pm, then a chance of showers. Steady temperature around 67. Southwest wind 11 to 14 mph becoming north in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Mostly clear, with a low around 47. North wind 11 to 14 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 61. North wind 11 to 14 mph.
Thursday Night
Clear, with a low around 44. Northeast wind around 7 mph.
Friday
Sunny, with a high near 64.
Friday Night
Mostly clear, with a low around 49.
Saturday
Partly sunny, with a high near 67.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
Partly sunny, with a high near 66.
Sunday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 51.
Columbus Day
A 30 percent chance of rain. Partly sunny, with a high near 65.
Monday Night
A 30 percent chance of rain. Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 67.
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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:
4:27 pm EDT Oct 7, 2025
Forecast Valid:
8pm EDT Oct 7, 2025-6pm EDT Oct 14, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation