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Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Mostly Cloudy
54°F
12°C
| Humidity | 77% |
| Wind Speed | NW 9 mph |
| Barometer | 29.76 in (1007.6 mb) |
| Dewpoint | 47°F (8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 51°F (11°C) |
| Last update | 14 May 11:56 pm EDT |
Extended Forecast for
Ronkonkoma NY
Overnight
Low: 51 °F
Mostly Cloudy
Friday
High: 67 °F
Slight Chance
ShowersFriday Night
Low: 53 °F
Mostly Clear
Saturday
High: 75 °F
Sunny
Saturday Night
Low: 59 °F
Partly Cloudy
Sunday
High: 83 °F
Mostly Sunny
Sunday Night
Low: 60 °F
Partly Cloudy
Monday
High: 74 °F
Mostly Sunny
Monday Night
Low: 58 °F
Mostly Clear
Detailed Forecast
Overnight
Mostly cloudy, with a low around 51. Northwest wind around 6 mph.
Friday
A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 67. North wind around 10 mph.
Friday Night
Mostly clear, with a low around 53. North wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 75. Southwest wind 6 to 16 mph.
Saturday Night
Partly cloudy, with a low around 59. Southwest wind 9 to 14 mph.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Mostly sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 61.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 77.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Ronkonkoma NY
40.81°N 73.11°W (Elev. 98 ft)
40.81°N 73.11°W (Elev. 98 ft)
6:30 pm EDT May 14, 2026
12am EDT May 15, 2026-6pm EDT May 21, 2026
Additional Resources
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