Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

83°F

28°C

Humidity 70%
Wind Speed W 3 mph
Barometer 29.84 in (1010.3 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 16 Jul 8:56 am EDT
Extended Forecast for

Great River NY

Heat Advisory July 16, 09:13am until July 17, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 16, 09:13am until July 17, 09:00pm

    NOW until 9:00pm Wed

    Heat Advisory

  • Today

    High: 86 °F

    Sunny

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 2am.  Mostly cloudy, with a low around 73. Southwest wind 8 to 15 mph.

    Low: 73 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 2pm.  Partly sunny, with a high near 84. Southwest wind 9 to 15 mph.

    High: 84 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am.  Mostly cloudy, with a low around 71. Southwest wind 7 to 13 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 71 °F

    T-storms
    Likely

  • Thursday

    Thursday: A chance of showers and thunderstorms before 2pm, then a slight chance of showers.  Partly sunny, with a high near 82. Northwest wind around 8 mph.  Chance of precipitation is 30%.

    High: 82 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 86. South wind 7 to 14 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 73. Southwest wind 8 to 15 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 84. Southwest wind 9 to 15 mph.
Wednesday Night
Showers and thunderstorms likely, mainly between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 71. Southwest wind 7 to 13 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers and thunderstorms before 2pm, then a slight chance of showers. Partly sunny, with a high near 82. Northwest wind around 8 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 68.
Friday
Sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 68.
Saturday
Partly sunny, with a high near 81.
Saturday Night
Mostly cloudy, with a low around 70.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 69.
Monday
Partly sunny, with a high near 80.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
Great River NY
 40.72°N 73.16°W (Elev. 13 ft)
5:52 am EDT Jul 16, 2024
9am EDT Jul 16, 2024-6pm EDT Jul 22, 2024
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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