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

Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Mostly Cloudy

42°F

6°C

Humidity 76%
Wind Speed SE 17 G 25 mph
Barometer 30.32 in (1026.7 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 15 Mar 8:56 pm EDT
Extended Forecast for

5 Miles SSE Blue Point NY

Wind Advisory March 16, 02:00pm until March 17, 04:00am
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Showers, with thunderstorms also possible after 5am. Temperature rising to around 45 by 5am. Windy, with a southeast wind 18 to 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 40 °F⇑

    Slight Chance
    Showers and
    Breezy then
    Showers and
    Windy

  • Monday

    Monday: Showers and possibly a thunderstorm. Patchy fog. High near 52. Windy, with a south wind 26 to 30 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 52 °F

    Showers and
    Patchy Fog

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 35. Very windy, with a south wind 31 to 41 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 35 °F

    Showers and
    Very Windy

  • Tuesday

    Tuesday: A 30 percent chance of showers before 8am. Mostly sunny, with a high near 39. Wind chill values between 25 and 30. Windy, with a west wind around 26 mph.

    High: 39 °F

    Windy. Chance
    Showers then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27. Windy, with a northwest wind 18 to 26 mph.

    Low: 27 °F

    Mostly Clear
    and Windy

  • Wednesday

    Wednesday: Increasing clouds, with a high near 35.

    High: 35 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers, with thunderstorms also possible after 5am. Temperature rising to around 45 by 5am. Windy, with a southeast wind 18 to 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and possibly a thunderstorm. Patchy fog. High near 52. Windy, with a south wind 26 to 30 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 35. Very windy, with a south wind 31 to 41 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A 30 percent chance of showers before 8am. Mostly sunny, with a high near 39. Wind chill values between 25 and 30. Windy, with a west wind around 26 mph.
Tuesday Night
Mostly clear, with a low around 27. Windy, with a northwest wind 18 to 26 mph.
Wednesday
Increasing clouds, with a high near 35.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
Partly sunny, with a high near 40.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Mostly sunny, with a high near 44.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 38.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 45. Breezy.
Saturday Night
Mostly cloudy, with a low around 34. Windy.
Sunday
Partly sunny, with a high near 43. Windy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Blue Point NY
 40.68°N 72.99°W (Elev. 0 ft)
Last Update:
9:19 pm EDT Mar 15, 2026
Forecast Valid:
9pm EDT Mar 15, 2026-6pm EDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation