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

58°F

14°C

Humidity 58%
Wind Speed W 8 mph
Barometer 29.84 in (1010.4 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 2 May 2:56 pm EDT
Extended Forecast for

Hauppauge NY

  • This Afternoon

    This Afternoon: A 30 percent chance of showers. Mostly cloudy, with a high near 60. Light northwest wind.

    High: 60 °F

    Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers before 2am. Cloudy, then gradual clearing toward daybreak, with a low around 41. Light north wind increasing to 5 to 10 mph after midnight.

    Low: 41 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 61. Northwest wind 14 to 18 mph, with gusts as high as 28 mph.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47. Southwest wind 3 to 8 mph.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67. Southwest wind 13 to 16 mph.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers. Mostly cloudy, with a high near 65.

    High: 65 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 30 percent chance of showers. Mostly cloudy, with a high near 60. Light northwest wind.
Tonight
A 20 percent chance of showers before 2am. Cloudy, then gradual clearing toward daybreak, with a low around 41. Light north wind increasing to 5 to 10 mph after midnight.
Sunday
Sunny, with a high near 61. Northwest wind 14 to 18 mph, with gusts as high as 28 mph.
Sunday Night
Mostly clear, with a low around 47. Southwest wind 3 to 8 mph.
Monday
Sunny, with a high near 67. Southwest wind 13 to 16 mph.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 71.
Tuesday Night
Mostly cloudy, with a low around 55.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 65.
Wednesday Night
Showers likely. Cloudy, with a low around 53. Chance of precipitation is 70%.
Thursday
Showers. High near 63. Chance of precipitation is 80%.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 63.
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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:
3:10 pm EDT May 2, 2026
Forecast Valid:
3pm EDT May 2, 2026-6pm EDT May 9, 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