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

72°F

22°C

Humidity 64%
Wind Speed N 3 mph
Barometer 30.09 in (1018.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 26 Jul 10:56 pm EDT
Extended Forecast for

Islip Terrace NY

  • Tonight

    Tonight: Mostly cloudy early, then gradual clearing, with a low around 65. North wind 3 to 5 mph.

    Low: 65 °F

    Gradual
    Clearing

  • Saturday

    Saturday: Sunny, with a high near 85. North wind 7 to 10 mph becoming south in the afternoon.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. South wind around 6 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 85. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 70. Southeast wind around 6 mph becoming southwest after midnight.

    Low: 70 °F

    Slight Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers after 2pm. Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy early, then gradual clearing, with a low around 65. North wind 3 to 5 mph.
Saturday
Sunny, with a high near 85. North wind 7 to 10 mph becoming south in the afternoon.
Saturday Night
Mostly clear, with a low around 66. South wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 85. Light and variable wind becoming south 5 to 10 mph in the morning.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 70. Southeast wind around 6 mph becoming southwest after midnight.
Monday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 83.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 70.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 72.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Friday
Mostly sunny, with a high near 87.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Islip Terrace NY
 40.75°N 73.18°W (Elev. 30 ft)
Last Update:
10:55 pm EDT Jul 26, 2024
Forecast Valid:
11pm EDT Jul 26, 2024-6pm EDT Aug 2, 2024
 
Forecast Discussion
 
Get as KML Get as XML

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