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.

Overcast

45°F

7°C

Humidity 90%
Wind Speed NE 8 G 22 mph
Barometer 30.31 in (1026.3 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 2 Apr 3:56 am EDT
Extended Forecast for

5 Miles SSE Blue Point NY

  • Overnight

    Overnight: Showers. Steady temperature around 44. Breezy, with a northeast wind around 22 mph. Chance of precipitation is 90%.

    Low: 44 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Showers likely, mainly before 8am. Cloudy, with a high near 43. Breezy, with a northeast wind 18 to 22 mph. Chance of precipitation is 60%.

    High: 43 °F

    Breezy.
    Showers
    Likely then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of drizzle or light rain, mainly after 2am. Patchy fog. Otherwise, cloudy, with a low around 41. Breezy, with an east wind 11 to 20 mph. Chance of precipitation is 30%.

    Low: 41 °F

    Chance Light
    Rain and
    Patchy Fog

  • Friday

    Friday: A chance of drizzle or light rain before 11am. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 49. East wind 6 to 11 mph. Chance of precipitation is 30%.

    High: 49 °F

    Chance Light
    Rain and
    Areas Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 48. Breezy, with a southwest wind 15 to 20 mph.

    Low: 48 °F

    Mostly Cloudy
    and Breezy

  • Saturday

    Saturday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43. Breezy.

    Low: 43 °F

    Mostly Cloudy
    and Breezy
    then Cloudy

  • Sunday

    Sunday: Showers. High near 52. Windy. Chance of precipitation is 90%.

    High: 52 °F

    Showers and
    Windy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Showers. Steady temperature around 44. Breezy, with a northeast wind around 22 mph. Chance of precipitation is 90%.
Thursday
Showers likely, mainly before 8am. Cloudy, with a high near 43. Breezy, with a northeast wind 18 to 22 mph. Chance of precipitation is 60%.
Thursday Night
A chance of drizzle or light rain, mainly after 2am. Patchy fog. Otherwise, cloudy, with a low around 41. Breezy, with an east wind 11 to 20 mph. Chance of precipitation is 30%.
Friday
A chance of drizzle or light rain before 11am. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 49. East wind 6 to 11 mph. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 48. Breezy, with a southwest wind 15 to 20 mph.
Saturday
Partly sunny, with a high near 54.
Saturday Night
Mostly cloudy, with a low around 43. Breezy.
Sunday
Showers. High near 52. Windy. Chance of precipitation is 90%.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 49.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 46.
Tuesday Night
Partly cloudy, with a low around 35. Breezy.
Wednesday
Sunny, with a high near 43.
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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:
2:20 am EDT Apr 2, 2026
Forecast Valid:
4am EDT Apr 2, 2026-6pm EDT Apr 8, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation