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.

Overcast

56°F

13°C

Humidity 67%
Wind Speed SE 13 G 18 mph
Barometer 30.32 in (1026.8 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 4 May 3:56 pm EDT
Extended Forecast for

Islip NY

  • Tonight

    Tonight: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 47. East wind 9 to 11 mph.

    Low: 47 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers, mainly after 8am. Cloudy, with a high near 56. Southeast wind 8 to 10 mph.

    High: 56 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers. Steady temperature around 53. South wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Showers

  • Monday

    Monday: Showers and thunderstorms likely before 11am, then a chance of showers between 11am and 2pm. Cloudy, with a high near 68. Southwest wind 7 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers after 8pm. Mostly cloudy, with a low around 55. Southwest wind 5 to 7 mph becoming northwest after midnight.

    Low: 55 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers. Mostly cloudy, with a high near 68.

    High: 68 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 47. East wind 9 to 11 mph.
Sunday
A 50 percent chance of showers, mainly after 8am. Cloudy, with a high near 56. Southeast wind 8 to 10 mph.
Sunday Night
Showers. Steady temperature around 53. South wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers and thunderstorms likely before 11am, then a chance of showers between 11am and 2pm. Cloudy, with a high near 68. Southwest wind 7 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 20 percent chance of showers after 8pm. Mostly cloudy, with a low around 55. Southwest wind 5 to 7 mph becoming northwest after midnight.
Tuesday
Partly sunny, with a high near 70.
Tuesday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 54.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 68.
Wednesday Night
Mostly cloudy, with a low around 54.
Thursday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 67.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 50.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 64.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Islip NY
 40.73°N 73.22°W (Elev. 7 ft)
Last Update:
3:11 pm EDT May 4, 2024
Forecast Valid:
4pm EDT May 4, 2024-6pm EDT May 11, 2024
 
Forecast Discussion
 
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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