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

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Light Rain Fog/Mist

57°F

14°C

Humidity 93%
Wind Speed NE 12 G 20 mph
Barometer 29.88 in (1011.9 mb)
Dewpoint 55°F (13°C)
Visibility 3.00 mi
Last update 11 Oct 8:56 pm EDT
Extended Forecast for

5 Miles SSE Blue Point NY

  • Tonight

    Tonight: Rain and thunderstorms before 2am, then rain likely and possibly a thunderstorm between 2am and 5am, then a chance of rain and thunderstorms after 5am. Low around 57. Windy, with a northeast wind 23 to 28 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Rain and
    Windy then
    Rain Likely
    and Breezy

  • Columbus Day

    Columbus Day: A chance of rain and thunderstorms before 8am, then a slight chance of rain between 8am and 11am. Cloudy through mid morning, then gradual clearing, with a high near 70. Breezy, with a northeast wind 17 to 22 mph decreasing to 10 to 15 mph in the afternoon. Chance of precipitation is 30%.

    High: 70 °F

    Chance Rain
    and Breezy
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. North wind 7 to 9 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny through mid morning, then becoming mostly cloudy, with a high near 68. East wind 7 to 13 mph becoming south in the afternoon.

    High: 68 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 63. Breezy, with a southwest wind 20 to 23 mph.

    Low: 63 °F

    Breezy.
    Slight Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 63. Breezy.

    High: 63 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain and thunderstorms before 2am, then rain likely and possibly a thunderstorm between 2am and 5am, then a chance of rain and thunderstorms after 5am. Low around 57. Windy, with a northeast wind 23 to 28 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Columbus Day
A chance of rain and thunderstorms before 8am, then a slight chance of rain between 8am and 11am. Cloudy through mid morning, then gradual clearing, with a high near 70. Breezy, with a northeast wind 17 to 22 mph decreasing to 10 to 15 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 57. North wind 7 to 9 mph.
Tuesday
Sunny through mid morning, then becoming mostly cloudy, with a high near 68. East wind 7 to 13 mph becoming south in the afternoon.
Tuesday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 63. Breezy, with a southwest wind 20 to 23 mph.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 63. Breezy.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Showers likely after 8am. Mostly cloudy, with a high near 66. Breezy. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 52. Windy.
Saturday
Partly sunny, with a high near 56. Windy.
Saturday Night
Mostly cloudy, with a low around 44. Windy.
Sunday
Mostly sunny, with a high near 54. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Blue Point NY
 40.68°N 72.99°W (Elev. 0 ft)
Last Update:
3:33 pm EDT Oct 11, 2026
Forecast Valid:
10pm EDT Oct 11, 2026-6pm EDT Oct 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation