Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Overcast

72°F

22°C

Humidity 84%
Wind Speed E 7 mph
Barometer 30.10 in (1019.0 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 13 Jul 12:56 am EDT
Extended Forecast for

Islip NYSimilar City Names

  • Overnight

    Overnight: Mostly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 81. East wind 5 to 9 mph.

    High: 81 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 72. Southeast wind around 6 mph becoming calm  in the evening.

    Low: 72 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 82. South wind 3 to 8 mph.

    High: 82 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers.  Mostly cloudy, with a low around 72. South wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 74.

    Low: 74 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 70. Calm wind.
Sunday
Partly sunny, with a high near 81. East wind 5 to 9 mph.
Sunday Night
Mostly cloudy, with a low around 72. Southeast wind around 6 mph becoming calm in the evening.
Monday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. South wind 3 to 8 mph.
Monday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 72. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Partly cloudy, with a low around 74.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly cloudy, with a low around 74.
Thursday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 87.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 75.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Islip NYSimilar City Names
 40.73°N 73.22°W (Elev. 7 ft)
6:14 pm EDT Jul 12, 2025
1am EDT Jul 13, 2025-6pm EDT Jul 19, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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