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.

Mostly Cloudy

82°F

28°C

Humidity 65%
Wind Speed NE 15 G 22 mph
Barometer 29.98 in (1015.0 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 26 Jun 4:56 am EDT
Extended Forecast for

Blue Point NY

  • Overnight

    Overnight: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 77. Northeast wind around 7 mph.

    Low: 77 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms. Mostly cloudy, with a temperature falling to around 72 by 9am. East wind 11 to 14 mph. Chance of precipitation is 30%.

    High: 76 °F⇓

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 63. East wind 8 to 10 mph.

    Low: 63 °F

    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers. Mostly cloudy, with a high near 70. East wind 10 to 14 mph.

    High: 70 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms. Cloudy, with a low around 63. East wind 6 to 10 mph.

    Low: 63 °F

    Chance
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers after 2pm. Mostly cloudy, with a high near 77.

    High: 77 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.

    Low: 66 °F

    Chance
    T-storms

  • Sunday

    Sunday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 77. Northeast wind around 7 mph.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a temperature falling to around 72 by 9am. East wind 11 to 14 mph. Chance of precipitation is 30%.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 63. East wind 8 to 10 mph.
Friday
A 20 percent chance of showers. Mostly cloudy, with a high near 70. East wind 10 to 14 mph.
Friday Night
A 30 percent chance of showers and thunderstorms. Cloudy, with a low around 63. East wind 6 to 10 mph.
Saturday
A 40 percent chance of showers after 2pm. Mostly cloudy, with a high near 77.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Sunday
Partly sunny, with a high near 77.
Sunday Night
Mostly cloudy, with a low around 66.
Monday
Partly sunny, with a high near 79.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 68.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Wednesday
Mostly sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Blue Point NY
 40.75°N 73.04°W (Elev. 30 ft)
Last Update:
4:13 am EDT Jun 26, 2025
Forecast Valid:
5am EDT Jun 26, 2025-6pm EDT Jul 2, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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