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.

Mostly Cloudy

18°C

65°F

Humidity 68%
Wind Speed S 17 km/h
Barometer 1016.3 mb (30.01 in)
Dewpoint 12°C (54°F)
Visibility 16 km
Last update 14 May 12:56 pm EDT
Extended Forecast for

Islip NY

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 20. South wind around 16 km/h.

    High: 20 °C

    Partly Sunny

  • Tonight

    Tonight: A 40 percent chance of showers, mainly between 11pm and 5am. Mostly cloudy, with a low around 13. Southwest wind 8 to 14 km/h.

    Low: 13 °C

    Chance
    Showers

  • Wednesday

    Wednesday: Rain likely, mainly after 2pm. Cloudy, with a high near 19. Southeast wind 10 to 16 km/h. Chance of precipitation is 60%. New precipitation amounts between 2.5 and 5 mm possible.

    High: 19 °C

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely. Mostly cloudy, with a low around 13. Northeast wind 18 to 21 km/h. Chance of precipitation is 60%. New precipitation amounts between 5 and 7.5 mm possible.

    Low: 13 °C

    Rain Likely

  • Thursday

    Thursday: A 40 percent chance of rain. Mostly cloudy, with a high near 19. Northeast wind 27 to 29 km/h.

    High: 19 °C

    Chance Rain

  • Thursday Night

    Thursday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 13.

    Low: 13 °C

    Chance Rain

  • Friday

    Friday: Partly sunny, with a high near 19.

    High: 19 °C

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 12.

    Low: 12 °C

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers. Mostly cloudy, with a high near 17.

    High: 17 °C

    Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 20. South wind around 16 km/h.
Tonight
A 40 percent chance of showers, mainly between 11pm and 5am. Mostly cloudy, with a low around 13. Southwest wind 8 to 14 km/h.
Wednesday
Rain likely, mainly after 2pm. Cloudy, with a high near 19. Southeast wind 10 to 16 km/h. Chance of precipitation is 60%. New precipitation amounts between 2.5 and 5 mm possible.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 13. Northeast wind 18 to 21 km/h. Chance of precipitation is 60%. New precipitation amounts between 5 and 7.5 mm possible.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 19. Northeast wind 27 to 29 km/h.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 13.
Friday
Partly sunny, with a high near 19.
Friday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 12.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 17.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 12.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 19.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 12.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 21.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Islip NY
 40.73°N 73.22°W (Elev. 7 m)
Last Update:
12:00 pm EDT May 14, 2024
Forecast Valid:
1pm EDT May 14, 2024-6pm EDT May 20, 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