


Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fog/Mist
76°F
24°C
Humidity | 97% |
Wind Speed | S 8 mph |
Barometer | 29.90 in (1012.4 mb) |
Dewpoint | 75°F (24°C) |
Visibility | 4.00 mi |
Heat Index | 75°F (24°C) |
Last update | 1 Jul 12:56 am EDT |
Extended Forecast for
Islip Terrace NY
Overnight
Low: 71 °F
Showers
Likely and
Patchy FogTuesday
High: 85 °F
Chance
Showers and
Patchy Fog
then Chance
T-stormsTuesday Night
Low: 71 °F
T-storms
LikelyWednesday
High: 83 °F
Chance
Showers then
Partly SunnyWednesday Night
Low: 69 °F
Partly Cloudy
Thursday
High: 86 °F
Sunny
Thursday Night
Low: 67 °F
Mostly Clear
Independence Day
High: 84 °F
Sunny
Friday Night
Low: 66 °F
Mostly Clear
Detailed Forecast
Overnight
A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then a chance of showers and thunderstorms after 5am. Patchy fog after 5am. Otherwise, cloudy, with a low around 71. Southwest wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 85. Southwest wind 8 to 14 mph. Chance of precipitation is 30%.
Tuesday Night
Showers and thunderstorms likely before 2am, then a chance of showers. Cloudy, with a low around 71. Southwest wind 5 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A 30 percent chance of showers before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 83. Southwest wind 5 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 69. Southwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 67.
Independence Day
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 66.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Mostly cloudy, with a low around 69.
Sunday
Partly sunny, with a high near 85.
Sunday Night
Mostly cloudy, with a low around 72.
Monday
Partly sunny, with a high near 85.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Islip Terrace NY
40.75°N 73.18°W (Elev. 30 ft)
40.75°N 73.18°W (Elev. 30 ft)
10:25 pm EDT Jun 30, 2025
1am EDT Jul 1, 2025-6pm EDT Jul 7, 2025