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.

Fog

35°F

2°C

Humidity 96%
Wind Speed E 3 mph
Barometer 30.28 in (1025.3 mb)
Dewpoint 34°F (1°C)
Visibility 0.25 mi
Last update 7 Mar 5:56 am EST
Extended Forecast for

Patchogue NY

Dense Fog Advisory until March 7, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until March 7, 10:00am

    NOW until 10:00am Sat

    Dense Fog Advisory

  • Today

    High: 45 °F

    Areas Drizzle
    and Areas Fog

  • Tonight

    Tonight: A 50 percent chance of showers after 10pm. Areas of fog before 4am. Otherwise, cloudy, with a temperature rising to around 46 by 4am. Southwest wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 41 °F⇑

    Chance
    Showers and
    Areas Fog

  • Sunday

    Sunday: A 40 percent chance of rain. Cloudy, with a high near 58. Southwest wind around 9 mph.

    High: 58 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. West wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Today
Areas of drizzle and fog between 7am and 1pm. Cloudy, with a high near 45. Calm wind becoming south 5 to 8 mph in the afternoon.
Tonight
A 50 percent chance of showers after 10pm. Areas of fog before 4am. Otherwise, cloudy, with a temperature rising to around 46 by 4am. Southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Sunday
A 40 percent chance of rain. Cloudy, with a high near 58. Southwest wind around 9 mph.
Sunday Night
Mostly clear, with a low around 37. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 55. Calm wind becoming southwest 5 to 9 mph in the morning.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Partly sunny, with a high near 57.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
A 40 percent chance of rain before 1pm. Cloudy, with a high near 54.
Wednesday Night
Rain likely, mainly after 1am. Cloudy, with a low around 41. Chance of precipitation is 60%.
Thursday
A 50 percent chance of rain. Cloudy, with a high near 51.
Thursday Night
Partly cloudy, with a low around 28.
Friday
Partly sunny, with a high near 43.
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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:
2:47 am EST Mar 7, 2026
Forecast Valid:
6am EST Mar 7, 2026-6pm EDT Mar 13, 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