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

16°C

60°F

Humidity 56%
Wind Speed SE 24 km/h
Barometer 1026.3 mb (30.31 in)
Dewpoint 7°C (44°F)
Visibility 16 km
Last update 4 May 11:56 am EDT
Extended Forecast for

Islip NY

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 15. Southeast wind 14 to 18 km/h.

    High: 15 °C

    Partly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 8. East wind 14 to 16 km/h.

    Low: 8 °C

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers, mainly after 8am. Cloudy, with a high near 13. Southeast wind 13 to 16 km/h.

    High: 13 °C

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers. Low around 10. Southeast wind 14 to 16 km/h. Chance of precipitation is 80%. New precipitation amounts between 5 and 7.5 mm possible.

    Low: 10 °C

    Showers

  • Monday

    Monday: Showers likely, mainly before 8am. Cloudy, with a high near 20. Southwest wind 11 to 14 km/h. Chance of precipitation is 60%. New precipitation amounts between 1 and 2.5 mm possible.

    High: 20 °C

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 13.

    Low: 13 °C

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 22.

    High: 22 °C

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 12.

    Low: 12 °C

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers. Mostly cloudy, with a high near 19.

    High: 19 °C

    Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 15. Southeast wind 14 to 18 km/h.
Tonight
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 8. East wind 14 to 16 km/h.
Sunday
A 50 percent chance of showers, mainly after 8am. Cloudy, with a high near 13. Southeast wind 13 to 16 km/h.
Sunday Night
Showers. Low around 10. Southeast wind 14 to 16 km/h. Chance of precipitation is 80%. New precipitation amounts between 5 and 7.5 mm possible.
Monday
Showers likely, mainly before 8am. Cloudy, with a high near 20. Southwest wind 11 to 14 km/h. Chance of precipitation is 60%. New precipitation amounts between 1 and 2.5 mm possible.
Monday Night
Mostly cloudy, with a low around 13.
Tuesday
Partly sunny, with a high near 22.
Tuesday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 12.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 19.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 11.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 17.
Thursday Night
Showers likely. Mostly cloudy, with a low around 11. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 18.
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:
5:54 am EDT May 4, 2024
Forecast Valid:
12pm EDT May 4, 2024-6pm EDT May 10, 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