Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Fog/Mist

61°F

16°C

Humidity 93%
Wind Speed SE 10 mph
Barometer 29.85 in (1010.6 mb)
Dewpoint 59°F (15°C)
Visibility 3.00 mi
Last update 9 May 1:56 pm EDT
Extended Forecast for

Sayville NY

  • This Afternoon

    This Afternoon: Showers.  Steady temperature around 55. East wind around 11 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 55 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 11pm, then a chance of showers.  Low around 50. Southeast wind 7 to 9 mph becoming west after midnight.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Showers then
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 67. West wind around 14 mph.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53. West wind around 7 mph.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 68. Northwest wind 6 to 8 mph.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Showers. Steady temperature around 55. East wind around 11 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms before 11pm, then a chance of showers. Low around 50. Southeast wind 7 to 9 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 67. West wind around 14 mph.
Saturday Night
Mostly clear, with a low around 53. West wind around 7 mph.
Sunday
Sunny, with a high near 68. Northwest wind 6 to 8 mph.
Sunday Night
Mostly clear, with a low around 51.
Monday
Sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Partly sunny, with a high near 68.
Tuesday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 57.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 67.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 58.
Thursday
A 30 percent chance of showers. Mostly cloudy, with a high near 69.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 58.
Friday
Partly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Sayville NY
 40.73°N 73.07°W (Elev. 16 ft)
10:35 am EDT May 9, 2025
3pm EDT May 9, 2025-6pm EDT May 16, 2025
 
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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