Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

29°F

-2°C

Humidity 69%
Wind Speed Calm
Barometer 30.33 in (1027.2 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 19 Mar 4:56 am EDT
Extended Forecast for

5 Miles SSE Blue Point NY

  • Today

    Today: Mostly sunny, with a high near 39. Calm wind becoming south 5 to 7 mph in the morning.

    High: 39 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 37. South wind 6 to 8 mph.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44. West wind 6 to 14 mph becoming south in the afternoon.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Rain likely.  Mostly cloudy, with a low around 41. Breezy, with a south wind around 21 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Rain Likely
    and Breezy

  • Saturday

    Saturday: Partly sunny, with a high near 49. West wind around 14 mph.

    High: 49 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am.  Mostly cloudy, with a low around 39. Breezy.  Chance of precipitation is 60%.

    Low: 39 °F

    Rain Likely
    and Breezy

  • Monday

    Monday: Rain likely, mainly before 8am.  Mostly cloudy, with a high near 43. Breezy.  Chance of precipitation is 60%.

    High: 43 °F

    Breezy. Rain
    Likely then
    Chance Rain

Detailed Forecast

Today
Mostly sunny, with a high near 39. Calm wind becoming south 5 to 7 mph in the morning.
Tonight
Partly cloudy, with a low around 37. South wind 6 to 8 mph.
Friday
Mostly sunny, with a high near 44. West wind 6 to 14 mph becoming south in the afternoon.
Friday Night
Rain likely. Mostly cloudy, with a low around 41. Breezy, with a south wind around 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Partly sunny, with a high near 49. West wind around 14 mph.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
Mostly cloudy, with a high near 47.
Sunday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 39. Breezy. Chance of precipitation is 60%.
Monday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 43. Breezy. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 30. Blustery.
Tuesday
Mostly sunny, with a high near 40. Breezy.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Partly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Blue Point NY
 40.68°N 72.99°W (Elev. 0 ft)
2:26 am EDT Mar 19, 2026
5am EDT Mar 19, 2026-6pm EDT Mar 25, 2026
 
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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