Three Weather Areas of Concern Today

Potential Tropical Cyclone Three will gradually approach the northern Gulf Coast with heavy rain and potential flooding. Meanwhile, a sharp cold front will produce severe thunderstorms with significant winds, hail, tornadoes and possible flooding across the Ohio Valley. Finally, a large dome of high pressure will continue the major heat wave over the West, extending into the central Plains. Read More >

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

78°F

26°C

Humidity 36%
Wind Speed SW 14 G 22 mph
Barometer 30.02 in (1016.4 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 18 Jun 10:56 am EDT
Extended Forecast for

West Sayville NY

  • Today

    Today: Mostly sunny, with a high near 78. Southwest wind 10 to 15 mph.

    Mostly Sunny

    High: 78 °F

  • Tonight

    Tonight: A slight chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am.  Mostly cloudy, with a low around 65. Southwest wind 9 to 15 mph.  Chance of precipitation is 40%.

    Chance
    Showers

    Low: 65 °F

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before 11am.  Partly sunny, with a high near 82. Southwest wind 11 to 13 mph.

    Chance
    Showers then
    Slight Chance
    T-storms

    High: 82 °F

  • Saturday
    Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 3am.  Partly cloudy, with a low around 66. Southwest wind 6 to 8 mph.

    Chance
    T-storms

    Low: 66 °F

  • Sunday

    Sunday: Sunny, with a high near 82. Southwest wind 9 to 11 mph.

    Sunny

    High: 82 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 67.

    Partly Cloudy

    Low: 67 °F

  • Monday

    Monday: Partly sunny, with a high near 82.

    Partly Sunny

    High: 82 °F

  • Monday
    Night

    Monday Night: A 40 percent chance of showers after 8pm.  Mostly cloudy, with a low around 67.

    Chance
    Showers

    Low: 67 °F

  • Tuesday

    Tuesday: Showers likely, mainly after 2pm.  Partly sunny, with a high near 80. Chance of precipitation is 60%.

    Showers
    Likely

    High: 80 °F

Detailed Forecast

Today
Mostly sunny, with a high near 78. Southwest wind 10 to 15 mph.
Tonight
A slight chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 65. Southwest wind 9 to 15 mph. Chance of precipitation is 40%.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 11am. Partly sunny, with a high near 82. Southwest wind 11 to 13 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms before 3am. Partly cloudy, with a low around 66. Southwest wind 6 to 8 mph.
Sunday
Sunny, with a high near 82. Southwest wind 9 to 11 mph.
Sunday Night
Partly cloudy, with a low around 67.
Monday
Partly sunny, with a high near 82.
Monday Night
A 40 percent chance of showers after 8pm. Mostly cloudy, with a low around 67.
Tuesday
Showers likely, mainly after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Tuesday Night
A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 76.
Click Map For Forecast
Point Forecast:
West Sayville NY
 40.74°N 73.1°W (Elev. 30 ft)
10:28 am EDT Jun 18, 2021
11am EDT Jun 18, 2021-6pm EDT Jun 24, 2021
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database