


Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
82°F
28°C
Humidity | 51% |
Wind Speed | NE 14 mph |
Barometer | 30.13 in (1020.2 mb) |
Dewpoint | 62°F (17°C) |
Visibility | 10.00 mi |
Heat Index | 83°F (28°C) |
Last update | 15 Aug 9:56 am EDT |
Extended Forecast for
Ronkonkoma NY
Today
High: 86 °F
Sunny
Tonight
Low: 67 °F
Increasing
CloudsSaturday
High: 82 °F
Mostly Sunny
Saturday Night
Low: 68 °F
Mostly Clear
Sunday
High: 86 °F
Mostly Sunny
Sunday Night
Low: 68 °F
Chance
ShowersMonday
High: 79 °F
Mostly Sunny
Monday Night
Low: 64 °F
Partly Cloudy
Tuesday
High: 79 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 86. Northeast wind around 10 mph becoming southeast in the afternoon.
Tonight
Increasing clouds, with a low around 67. East wind 3 to 7 mph.
Saturday
Mostly sunny, with a high near 82. Southeast wind 6 to 9 mph.
Saturday Night
Mostly clear, with a low around 68. South wind around 6 mph.
Sunday
Mostly sunny, with a high near 86. Southwest wind 7 to 13 mph.
Sunday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 68.
Monday
Mostly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Partly sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
Mostly sunny, with a high near 83.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Ronkonkoma NY
40.81°N 73.11°W (Elev. 98 ft)
40.81°N 73.11°W (Elev. 98 ft)
9:01 am EDT Aug 15, 2025
10am EDT Aug 15, 2025-6pm EDT Aug 21, 2025