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.

Mostly Cloudy

82°F

28°C

Humidity 63%
Wind Speed SW 12 mph
Barometer 29.78 in (1008.2 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 26 Jun 11:56 am EDT
Extended Forecast for

Islip NY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 84. Southwest wind around 14 mph, with gusts as high as 25 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers and thunderstorms likely. Mostly cloudy, with a low around 69. South wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 82. Northwest wind around 8 mph.

    High: 82 °F

    Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. West wind around 9 mph becoming north after midnight.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77. North wind 7 to 9 mph becoming southeast in the afternoon.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers. Mostly cloudy, with a high near 79.

    High: 79 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 84. Southwest wind around 14 mph, with gusts as high as 25 mph.
Tonight
Showers and thunderstorms likely. Mostly cloudy, with a low around 69. South wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 30 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 82. Northwest wind around 8 mph.
Thursday Night
Mostly clear, with a low around 62. West wind around 9 mph becoming north after midnight.
Friday
Sunny, with a high near 77. North wind 7 to 9 mph becoming southeast in the afternoon.
Friday Night
Partly cloudy, with a low around 65.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 79.
Saturday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 65. Chance of precipitation is 60%.
Monday
Sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 78.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Islip NY
 40.73°N 73.22°W (Elev. 7 ft)
Last Update:
12:26 pm EDT Jun 26, 2024
Forecast Valid:
12pm EDT Jun 26, 2024-6pm EDT Jul 2, 2024
 
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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