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.

Fog/Mist

59°F

15°C

Humidity 96%
Wind Speed SW 6 mph
Barometer 29.69 in (1005.4 mb)
Dewpoint 58°F (14°C)
Visibility 5.00 mi
Last update 8 May 2:56 am EDT
Extended Forecast for

Central Islip NY

  • Overnight

    Overnight: A 30 percent chance of showers after 5am. Mostly cloudy, with a steady temperature around 57. South wind around 6 mph.

    Low: 57 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 72. South wind 9 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56. Southwest wind around 6 mph becoming northwest after midnight.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Showers likely, mainly after 2pm. Increasing clouds, with a high near 69. Northwest wind 5 to 8 mph becoming northeast in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely, mainly before 2am. Cloudy, with a low around 49. Northeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers. Mostly cloudy, with a high near 58.

    High: 58 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
A 30 percent chance of showers after 5am. Mostly cloudy, with a steady temperature around 57. South wind around 6 mph.
Wednesday
Showers and thunderstorms likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 72. South wind 9 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 56. Southwest wind around 6 mph becoming northwest after midnight.
Thursday
Showers likely, mainly after 2pm. Increasing clouds, with a high near 69. Northwest wind 5 to 8 mph becoming northeast in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Showers likely, mainly before 2am. Cloudy, with a low around 49. Northeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 58.
Friday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 47.
Saturday
Partly sunny, with a high near 61.
Saturday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 48.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 62.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Central Islip NY
 40.79°N 73.2°W (Elev. 98 ft)
Last Update:
3:29 am EDT May 8, 2024
Forecast Valid:
3am EDT May 8, 2024-6pm EDT May 14, 2024
 
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