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

12°C

53°F

Humidity 69%
Wind Speed SE 19 km/h
Barometer 1010.6 mb (29.84 in)
Dewpoint 6°C (43°F)
Visibility 16 km
Wind Chill9°C (49°F)
Last update 11 May 1:56 pm EDT
Extended Forecast for

Islip, Long Island Mac Arthur Airport NY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 16. Southeast wind around 14 km/h.

    High: 16 °C

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 7. Southeast wind 8 to 13 km/h.

    Low: 7 °C

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers, mainly before 2pm. Mostly cloudy, with a high near 13. Southeast wind 10 to 13 km/h.

    High: 13 °C

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 7. South wind 8 to 10 km/h.

    Low: 7 °C

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 17. South wind 10 to 15 km/h increasing to 16 to 21 km/h in the afternoon.

    High: 17 °C

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 11.

    Low: 11 °C

    Mostly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers. Mostly cloudy, with a high near 19.

    High: 19 °C

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely. Mostly cloudy, with a low around 13. Chance of precipitation is 70%.

    Low: 13 °C

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 19. Chance of precipitation is 60%.

    High: 19 °C

    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 16. Southeast wind around 14 km/h.
Tonight
Mostly cloudy, with a low around 7. Southeast wind 8 to 13 km/h.
Sunday
A 30 percent chance of showers, mainly before 2pm. Mostly cloudy, with a high near 13. Southeast wind 10 to 13 km/h.
Sunday Night
Partly cloudy, with a low around 7. South wind 8 to 10 km/h.
Monday
Mostly sunny, with a high near 17. South wind 10 to 15 km/h increasing to 16 to 21 km/h in the afternoon.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
A 50 percent chance of showers. Mostly cloudy, with a high near 19.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 13. Chance of precipitation is 70%.
Wednesday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 19. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 12.
Thursday
Mostly sunny, with a high near 22.
Thursday Night
Partly cloudy, with a low around 12.
Friday
Partly sunny, with a high near 20.
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ABOUT THIS FORECAST

 
Point Forecast:
Islip, Long Island Mac Arthur Airport NY
 40.8°N 73.09°W (Elev. 98 m)
Last Update:
1:47 pm EDT May 11, 2024
Forecast Valid:
2pm EDT May 11, 2024-6pm EDT May 17, 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