Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy and Breezy

62°F

17°C

Humidity 62%
Wind Speed SW 22 G 29 mph
Barometer 30.02 in (1016.4 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 31 Mar 11:56 am EDT
Extended Forecast for

Centereach NY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 74. Southwest wind around 17 mph.

    High: 74 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 5am.  Partly cloudy, with a low around 52. Southwest wind around 14 mph.

    Low: 52 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 8am, then a chance of rain between 8am and 2pm, then rain likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 67. Southwest wind around 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Rain and possibly a thunderstorm.  Low around 41. East wind 7 to 11 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Rain

  • Thursday

    Thursday: A 30 percent chance of rain before 2pm.  Cloudy, with a high near 46. East wind 11 to 13 mph.

    High: 46 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain between 8pm and 2am.  Cloudy, with a low around 39. Chance of precipitation is 30%.

    Low: 39 °F

    Chance Rain

  • Friday

    Friday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Friday Night

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

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 74. Southwest wind around 17 mph.
Tonight
A 30 percent chance of showers, mainly after 5am. Partly cloudy, with a low around 52. Southwest wind around 14 mph.
Wednesday
A chance of showers before 8am, then a chance of rain between 8am and 2pm, then rain likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 67. Southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Rain and possibly a thunderstorm. Low around 41. East wind 7 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
A 30 percent chance of rain before 2pm. Cloudy, with a high near 46. East wind 11 to 13 mph.
Thursday Night
A chance of rain between 8pm and 2am. Cloudy, with a low around 39. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 59.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 64.
Saturday Night
A 30 percent chance of rain after 8pm. Mostly cloudy, with a low around 47.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 61.
Sunday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 43.
Monday
A 30 percent chance of rain. Partly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
Centereach NY
 40.87°N 73.07°W (Elev. 98 ft)
10:11 am EDT Mar 31, 2026
12pm EDT Mar 31, 2026-6pm EDT Apr 6, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database