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.

Rain Fog/Mist

60°F

16°C

Humidity 93%
Wind Speed E 13 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 58°F (14°C)
Visibility 2.50 mi
Last update 11 Oct 4:56 pm EDT
Extended Forecast for

Fort Salonga NY

  • This Afternoon

    This Afternoon: Rain. High near 62. East wind around 16 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Rain

  • Tonight

    Tonight: Rain and possibly a thunderstorm before midnight, then a chance of rain and thunderstorms between midnight and 2am, then a chance of rain after 2am. Low around 57. Breezy, with a northeast wind 18 to 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 57 °F

    Breezy. Rain
    then Chance
    Rain

  • Columbus Day

    Columbus Day: Cloudy through mid morning, then gradual clearing, with a high near 71. Northeast wind 6 to 15 mph.

    High: 71 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. Northwest wind 3 to 5 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70. Light and variable wind becoming south 5 to 8 mph in the morning.

    High: 70 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Rain. High near 62. East wind around 16 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain and possibly a thunderstorm before midnight, then a chance of rain and thunderstorms between midnight and 2am, then a chance of rain after 2am. Low around 57. Breezy, with a northeast wind 18 to 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Columbus Day
Cloudy through mid morning, then gradual clearing, with a high near 71. Northeast wind 6 to 15 mph.
Monday Night
Mostly clear, with a low around 57. Northwest wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 70. Light and variable wind becoming south 5 to 8 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 64.
Thursday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 53.
Friday
Showers likely. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 50. Windy.
Saturday
Partly sunny, with a high near 56. Windy.
Saturday Night
Mostly cloudy, with a low around 40. Windy.
Sunday
Mostly sunny, with a high near 54. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Salonga NY
 40.92°N 73.3°W (Elev. 26 ft)
Last Update:
3:33 pm EDT Oct 11, 2026
Forecast Valid:
5pm EDT Oct 11, 2026-6pm EDT Oct 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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