Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

74°F

23°C

Humidity 74%
Wind Speed SW 8 mph
Barometer 29.95 in (1014.2 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 20 May 7:56 am EDT
Extended Forecast for

Bayport NY

  • Today

    Today: A 30 percent chance of showers and thunderstorms after 4pm.  Increasing clouds, with a high near 79. Southwest wind 8 to 14 mph.

    High: 79 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers.  Mostly cloudy, with a low around 57. Light and variable wind becoming north 5 to 7 mph after midnight.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly before 2pm.  Mostly cloudy, with a high near 66. North wind 7 to 9 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 52. Light and variable wind.

    Low: 52 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 64. East wind 8 to 11 mph.

    High: 64 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 50 percent chance of showers after 2am.  Cloudy, with a low around 51.

    Low: 51 °F

    Cloudy then
    Chance
    Showers

  • Saturday

    Saturday: Showers, mainly after 8am.  High near 60. Chance of precipitation is 80%.

    High: 60 °F

    Showers

  • Saturday Night

    Saturday Night: Showers.  Low around 51. Chance of precipitation is 80%.

    Low: 51 °F

    Showers

  • Sunday

    Sunday: Showers likely, mainly before 2pm.  Cloudy, with a high near 62. Chance of precipitation is 70%.

    High: 62 °F

    Showers
    Likely

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 79. Southwest wind 8 to 14 mph.
Tonight
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 57. Light and variable wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 66. North wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly cloudy, with a low around 52. Light and variable wind.
Friday
Partly sunny, with a high near 64. East wind 8 to 11 mph.
Friday Night
A 50 percent chance of showers after 2am. Cloudy, with a low around 51.
Saturday
Showers, mainly after 8am. High near 60. Chance of precipitation is 80%.
Saturday Night
Showers. Low around 51. Chance of precipitation is 80%.
Sunday
Showers likely, mainly before 2pm. Cloudy, with a high near 62. Chance of precipitation is 70%.
Sunday Night
A 50 percent chance of showers. Cloudy, with a low around 53.
Memorial Day
A 50 percent chance of showers. Mostly cloudy, with a high near 67.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 56.
Tuesday
Mostly cloudy, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Bayport NY
 40.73°N 73.04°W (Elev. 0 ft)
2:20 am EDT May 20, 2026
8am EDT May 20, 2026-6pm EDT May 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

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