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

78°F

26°C

Humidity 48%
Wind Speed SW 14 G 21 mph
Barometer 29.99 in (1015.5 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 2 Jun 3:56 pm EDT
Extended Forecast for

Islip, Long Island Mac Arthur Airport NY

  • Tonight

    Tonight: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 64. Southwest wind 5 to 10 mph.

    Low: 64 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 82. West wind around 7 mph becoming south in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 59. East wind around 6 mph.

    Low: 59 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73. East wind 6 to 10 mph.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. Southeast wind around 6 mph becoming calm in the evening.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 40 percent chance of showers. Partly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers

Detailed Forecast

Tonight
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 64. Southwest wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 82. West wind around 7 mph becoming south in the afternoon.
Monday Night
Partly cloudy, with a low around 59. East wind around 6 mph.
Tuesday
Mostly sunny, with a high near 73. East wind 6 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 58. Southeast wind around 6 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 74.
Wednesday Night
A 40 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 63.
Thursday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of showers. Partly cloudy, with a low around 63.
Friday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 78.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 61.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 74.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 61.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 76.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Islip, Long Island Mac Arthur Airport NY
 40.8°N 73.09°W (Elev. 98 ft)
Last Update:
3:14 pm EDT Jun 2, 2024
Forecast Valid:
4pm EDT Jun 2, 2024-6pm EDT Jun 9, 2024
 
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