Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fog
43°F
6°C
| Humidity | 97% |
| Wind Speed | S 7 mph |
| Barometer | 29.99 in (1015.4 mb) |
| Dewpoint | 42°F (6°C) |
| Visibility | 0.25 mi |
| Wind Chill | 39°F (4°C) |
| Last update | 7 Mar 4:56 pm EST |
Extended Forecast for
Hauppauge NY
Dense Fog Advisory March 7, 10:00pm until March 8, 09:00am
Tonight
Low: 44 °F⇑
Showers
Likely and
Areas Dense
FogSunday
High: 59 °F
Showers
Likely and
Patchy Fog
then Chance
ShowersSunday Night

Low: 39 °F
Mostly Clear
Monday

High: 56 °F
Sunny
Monday Night

Low: 39 °F
Partly Cloudy
Tuesday

High: 58 °F
Mostly Sunny
Tuesday Night

Low: 42 °F
Mostly Cloudy
Wednesday

High: 55 °F
Cloudy
Wednesday Night
Low: 45 °F
Cloudy then
Chance
Showers
Detailed Forecast
Tonight
Patchy drizzle before 10pm, then patchy drizzle with a chance of showers between 10pm and 4am, then showers likely with areas of drizzle after 4am. The drizzle could be heavy at times. Areas of dense fog. Otherwise, cloudy, with a temperature rising to around 47 by 5am. South wind around 9 mph. Chance of precipitation is 70%.
Sunday
Showers likely, mainly before 1pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 59. Southwest wind 8 to 10 mph. Chance of precipitation is 60%.
Sunday Night
Mostly clear, with a low around 39. West wind 3 to 6 mph.
Monday
Sunny, with a high near 56. Calm wind becoming south 5 to 9 mph in the morning.
Monday Night
Partly cloudy, with a low around 39. South wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 42.
Wednesday
Cloudy, with a high near 55.
Wednesday Night
A 40 percent chance of showers after 1am. Cloudy, with a low around 45.
Thursday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow showers. Partly cloudy, with a low around 29. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 43.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 34.
Saturday
Mostly cloudy, with a high near 48.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Hauppauge NY
40.82°N 73.2°W (Elev. 197 ft)
40.82°N 73.2°W (Elev. 197 ft)
3:40 pm EST Mar 7, 2026
5pm EST Mar 7, 2026-6pm EDT Mar 14, 2026



