Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

63°F

17°C

Humidity 84%
Wind Speed NW 7 mph
Barometer 29.82 in (1009.9 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 17 Apr 7:56 am EDT
Extended Forecast for

Centereach NY

  • Today

    Today: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 75. Northwest wind 3 to 7 mph.  Chance of precipitation is 30%.

    High: 75 °F

    Chance
    Showers

  • Tonight

    Tonight: Scattered showers before 8pm.  Mostly cloudy, with a low around 51. Northeast wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 30%.

    Low: 51 °F

    Scattered
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 62. Northeast wind 3 to 8 mph.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am.  Mostly cloudy, with a low around 47. Light southeast wind.

    Low: 47 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers after 2pm.  High near 57. South wind 5 to 11 mph becoming northwest in the afternoon.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 8pm.  Low around 37. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Showers then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 75. Northwest wind 3 to 7 mph. Chance of precipitation is 30%.
Tonight
Scattered showers before 8pm. Mostly cloudy, with a low around 51. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 62. Northeast wind 3 to 8 mph.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 47. Light southeast wind.
Sunday
Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers after 2pm. High near 57. South wind 5 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers, mainly before 8pm. Low around 37. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 52.
Tuesday Night
Partly cloudy, with a low around 42.
Wednesday
Partly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Centereach NY
 40.87°N 73.07°W (Elev. 98 ft)
2:22 am EDT Apr 17, 2026
8am EDT Apr 17, 2026-6pm EDT Apr 23, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database