Long Island MacArthur Airport (ISP) Weather 07/13/2026
Overnight
73
Partly Cloudy
Thursday
93
Sunny
Thursday Night
76
Clear
Friday
99
Sunny then Isolated T-storms
Friday Night
77
Isolated T-storms
Independence Day
96
Sunny then Chance T-storms
Saturday Night
74
Chance T-storms
Sunday
90
Partly Sunny then Chance T-storms
Sunday Night
69
Showers Likely
Monday
82
Showers Likely
Monday Night
68
Chance Showers
Tuesday
83
Partly Sunny
Tuesday Night
68
Partly Cloudy
Weekly Forecast
Overnight
Partly cloudy, with a low around 73. Southwest wind around 7 mph.
Thursday
Sunny, with a high near 93. Heat index values as high as 105. Southwest wind 6 to 11 mph.
Thursday Night
Clear, with a low around 76. Southwest wind 5 to 9 mph becoming light after midnight.
Friday
Isolated showers and thunderstorms after 2pm. Sunny, with a high near 99. Heat index values as high as 109. Calm wind becoming west 5 to 9 mph in the morning. Chance of precipitation is 20%.
Friday Night
Isolated showers and thunderstorms. Partly cloudy, with a low around 77. West wind 3 to 6 mph. Chance of precipitation is 20%.
Independence Day
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96.
Saturday Night
A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 74.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 90.
Sunday Night
A chance of showers and thunderstorms, then showers likely after 8pm. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Monday
Showers likely before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Monday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 68.
Tuesday
Partly sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 68.