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Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Light Rain Fog/Mist and Breezy

58°F

14°C

Humidity 93%
Wind Speed NE 25 G 38 mph
Barometer 29.74 in (1007.1 mb)
Dewpoint 56°F (13°C)
Visibility 2.00 mi
Last update 26 Sep 10:56 am EDT
Extended Forecast for

Hauppauge NY

Wind Advisory September 26, 11:34am until September 27, 06:00am
Coastal Flood Warning September 26, 11:34am until September 27, 06:00pm
Click here for hazard details and duration
Wind Advisory
Coastal Flood Warning
  •  
    Wind Advisory September 26, 11:34am until September 27, 06:00am
    Coastal Flood Warning September 26, 11:34am until September 27, 06:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 63 °F

    Rain and
    Windy

  • Tonight

    Tonight: Rain, with thunderstorms also possible after 11pm. Low around 56. Windy, with a north wind 26 to 29 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 56 °F

    Rain and
    Windy

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 5pm. High near 68. Breezy, with a northeast wind 17 to 25 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 68 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 59. East wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 59 °F

    Showers

  • Monday

    Monday: Showers likely, mainly before 2pm. Cloudy, with a high near 67. Northeast wind 11 to 13 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 67 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Today
Rain and possibly a thunderstorm. High near 63. Windy, with a north wind 29 to 32 mph, with gusts as high as 46 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Rain, with thunderstorms also possible after 11pm. Low around 56. Windy, with a north wind 26 to 29 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday
Showers, with thunderstorms also possible after 5pm. High near 68. Breezy, with a northeast wind 17 to 25 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
Showers and possibly a thunderstorm. Low around 59. East wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Monday
Showers likely, mainly before 2pm. Cloudy, with a high near 67. Northeast wind 11 to 13 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 57.
Tuesday
Partly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Partly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hauppauge NY
 40.82°N 73.2°W (Elev. 197 ft)
Last Update:
6:02 am EDT Sep 26, 2026
Forecast Valid:
11am EDT Sep 26, 2026-6pm EDT Oct 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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