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

81°F

27°C

Humidity 74%
Wind Speed S 14 G 21 mph
Barometer 29.96 in (1014.5 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 2 Aug 12:56 pm EDT
Extended Forecast for

Patchogue NY

  • This Afternoon

    This Afternoon: A 30 percent chance of showers after 5pm. Mostly cloudy, with a steady temperature around 79. South wind 11 to 13 mph.

    High: 79 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Cloudy, with a low around 72. South wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Showers
    Likely

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 81. Southwest wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Showers

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 68. Southwest wind 5 to 8 mph becoming northwest after midnight. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83. North wind around 7 mph becoming southeast in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 69.

    Low: 69 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers after 5pm. Mostly cloudy, with a steady temperature around 79. South wind 11 to 13 mph.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Cloudy, with a low around 72. South wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and possibly a thunderstorm. High near 81. Southwest wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 68. Southwest wind 5 to 8 mph becoming northwest after midnight. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 83. North wind around 7 mph becoming southeast in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 69.
Wednesday
Partly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
A 30 percent chance of showers before 2am. Partly cloudy, with a low around 73.
Friday
A 30 percent chance of showers. Mostly sunny, with a high near 83.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 72.
Saturday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Patchogue NY
 40.77°N 73.03°W (Elev. 23 ft)
Last Update:
7:44 am EDT Aug 2, 2026
Forecast Valid:
1pm EDT Aug 2, 2026-6pm EDT Aug 8, 2026
 
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