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

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fair

44°F

7°C

Humidity 68%
Wind Speed NE 6 mph
Barometer 30.50 in (1032.9 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 10 Oct 1:56 am EDT
Extended Forecast for

Fort Salonga NY

Coastal Flood Watch October 12, 08:00am until October 13, 06:00pm
High Wind Watch October 12, 12:00pm until October 13, 06:00am
Click here for hazard details and duration
Coastal Flood Watch
High Wind Watch

  • Overnight

    Overnight: Clear, with a low around 44. East wind around 8 mph.

    Low: 44 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 64. East wind around 7 mph becoming southeast in the afternoon.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 54. South wind 6 to 8 mph.

    Low: 54 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 69. East wind 6 to 11 mph.

    High: 69 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Rain likely, mainly after 2am. Cloudy, with a low around 57. Breezy, with an east wind 11 to 21 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Rain Likely
    and Breezy

  • Sunday

    Sunday: Rain likely. Cloudy, with a high near 65. Windy. Chance of precipitation is 70%. New precipitation amounts between three quarters and one inch possible.

    High: 65 °F

    Rain Likely
    and Windy

  • Sunday Night

    Sunday Night: Rain. Low around 56. Windy. Chance of precipitation is 80%.

    Low: 56 °F

    Rain and
    Windy

  • Columbus Day

    Columbus Day: Showers before 2pm, then rain likely after 2pm. High near 66. Windy. Chance of precipitation is 80%.

    High: 66 °F

    Showers and
    Windy

  • Monday Night

    Monday Night: Rain likely. Mostly cloudy, with a low around 55. Breezy. Chance of precipitation is 70%.

    Low: 55 °F

    Rain Likely
    and Breezy

Detailed Forecast

Overnight
Clear, with a low around 44. East wind around 8 mph.
Friday
Sunny, with a high near 64. East wind around 7 mph becoming southeast in the afternoon.
Friday Night
Mostly cloudy, with a low around 54. South wind 6 to 8 mph.
Saturday
Mostly cloudy, with a high near 69. East wind 6 to 11 mph.
Saturday Night
Rain likely, mainly after 2am. Cloudy, with a low around 57. Breezy, with an east wind 11 to 21 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain likely. Cloudy, with a high near 65. Windy. Chance of precipitation is 70%. New precipitation amounts between three quarters and one inch possible.
Sunday Night
Rain. Low around 56. Windy. Chance of precipitation is 80%.
Columbus Day
Showers before 2pm, then rain likely after 2pm. High near 66. Windy. Chance of precipitation is 80%.
Monday Night
Rain likely. Mostly cloudy, with a low around 55. Breezy. Chance of precipitation is 70%.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 67.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 62.
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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:
1:58 am EDT Oct 10, 2025
Forecast Valid:
2am EDT Oct 10, 2025-6pm EDT Oct 16, 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