National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

74°F

23°C

Humidity 74%
Wind Speed SW 12 mph
Barometer 30.33 in (1027.1 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 19 Jun 7:56 pm EDT
Extended Forecast for

5 Miles SSE West Sayville NY

  • Tonight

    Tonight: Partly cloudy, with a low around 68. Southwest wind 10 to 13 mph.

    Low: 68 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 75. Southwest wind 11 to 16 mph.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 70. Southwest wind 14 to 16 mph.

    Low: 70 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 77. South wind 11 to 13 mph.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind 9 to 11 mph.

    Low: 69 °F

    Chance
    T-storms

  • Saturday

    Saturday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Breezy.

    Low: 72 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Tonight
Partly cloudy, with a low around 68. Southwest wind 10 to 13 mph.
Thursday
Sunny, with a high near 75. Southwest wind 11 to 16 mph.
Thursday Night
Partly cloudy, with a low around 70. Southwest wind 14 to 16 mph.
Friday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 77. South wind 11 to 13 mph.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind 9 to 11 mph.
Saturday
Partly sunny, with a high near 75.
Saturday Night
A 30 percent chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 70.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 77.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Breezy.
Monday
Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 68.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Mostly sunny, with a high near 77.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE West Sayville NY
 40.67°N 73.06°W (Elev. 0 ft)
Last Update:
7:26 pm EDT Jun 19, 2024
Forecast Valid:
8pm EDT Jun 19, 2024-6pm EDT Jun 26, 2024
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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