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.

Partly Cloudy

80°F

27°C

Humidity 38%
Wind Speed SW 14 G 18 mph
Barometer 29.86 in (1011.2 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 21 Jun 4:56 pm EDT
Extended Forecast for

Blue Point NY

  • Tonight

    Tonight: Partly cloudy, with a low around 64. Southwest wind 5 to 8 mph becoming calm in the evening.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Showers likely and possibly a thunderstorm, mainly after 2pm. Increasing clouds, with a high near 76. Light southeast wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then showers and possibly a thunderstorm after 11pm. Low around 66. South wind 13 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. West wind around 8 mph becoming northwest in the morning. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 79 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65. Northwest wind 3 to 6 mph.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 2am. Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 64. Southwest wind 5 to 8 mph becoming calm in the evening.
Monday
Showers likely and possibly a thunderstorm, mainly after 2pm. Increasing clouds, with a high near 76. Light southeast wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then showers and possibly a thunderstorm after 11pm. Low around 66. South wind 13 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Showers likely, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. West wind around 8 mph becoming northwest in the morning. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Partly cloudy, with a low around 65. Northwest wind 3 to 6 mph.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 65.
Thursday
Sunny, with a high near 81.
Thursday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 67.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 81.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 68.
Saturday
Partly sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 68.
Sunday
Mostly sunny, with a high near 84.
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:
2:19 pm EDT Jun 21, 2026
Forecast Valid:
5pm EDT Jun 21, 2026-6pm EDT Jun 28, 2026
 
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