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.

Overcast

58°F

14°C

Humidity 62%
Wind Speed S 18 G 29 mph
Barometer 29.83 in (1010.3 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 7 Nov 3:56 pm EST
Extended Forecast for

Nesconset NY

  • Tonight

    Tonight: Showers, mainly after 10pm. Low around 54. South wind 9 to 17 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: Showers likely, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 63. Northwest wind 7 to 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Showers
    Likely then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44. Northwest wind around 5 mph becoming light and variable.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: Rain, mainly after 1pm. High near 61. Southeast wind 6 to 13 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 61 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain before 1am, then a chance of drizzle or light rain after 1am. Low around 47. Southeast wind 5 to 8 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Rain

  • Monday

    Monday: A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 54.

    High: 54 °F

    Chance Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers, mainly after 10pm. Low around 54. South wind 9 to 17 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Showers likely, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 63. Northwest wind 7 to 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Partly cloudy, with a low around 44. Northwest wind around 5 mph becoming light and variable.
Sunday
Rain, mainly after 1pm. High near 61. Southeast wind 6 to 13 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain before 1am, then a chance of drizzle or light rain after 1am. Low around 47. Southeast wind 5 to 8 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 54.
Monday Night
Partly cloudy, with a low around 29.
Veterans Day
Mostly sunny, with a high near 44.
Tuesday Night
Partly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 54.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 53.
Thursday Night
Mostly clear, with a low around 36.
Friday
Mostly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nesconset NY
 40.86°N 73.16°W (Elev. 98 ft)
Last Update:
12:46 pm EST Nov 7, 2025
Forecast Valid:
4pm EST Nov 7, 2025-6pm EST Nov 14, 2025
 
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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