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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
73°F
23°C
| Humidity | 90% |
| Wind Speed | SE 14 G 25 mph |
| Barometer | 29.58 in (1001.5 mb) |
| Dewpoint | 70°F (21°C) |
| Visibility | 9.00 mi |
| Last update | 29 Jul 1:56 am EDT |
Extended Forecast for
Hauppauge NY
Flood Watch July 29, 02:21am until July 29, 08:00pm
NOW until 8:00pm Wed
Flood Watch
Overnight
Low: 70 °F
Showers
Wednesday
High: 78 °F
Showers
Wednesday Night
Low: 67 °F
Chance
ShowersThursday
High: 77 °F
Showers
LikelyThursday Night
Low: 65 °F
Mostly Cloudy
Friday
High: 83 °F
Mostly Sunny
Friday Night
Low: 65 °F
Mostly Clear
Saturday
High: 82 °F
Mostly Sunny
Detailed Forecast
Overnight
Showers and possibly a thunderstorm. Low around 70. Southeast wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. High near 78. Southeast wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. East wind around 8 mph becoming west in the evening. Chance of precipitation is 50%.
Thursday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. North wind 8 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly cloudy, with a low around 65. North wind 6 to 8 mph.
Friday
Mostly sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Mostly cloudy, with a low around 66.
Sunday
Partly sunny, with a high near 81.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 67.
Monday
Partly sunny, with a high near 82.
Monday Night
Mostly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 83.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Hauppauge NY
40.82°N 73.2°W (Elev. 197 ft)
40.82°N 73.2°W (Elev. 197 ft)
9:21 pm EDT Jul 28, 2026
2am EDT Jul 29, 2026-6pm EDT Aug 4, 2026
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