News Headlines
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Fair
40°F
4°C
| Humidity | 70% |
| Wind Speed | N 5 mph |
| Barometer | 30.49 in (1032.5 mb) |
| Dewpoint | 31°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 36°F (2°C) |
| Last update | 18 Oct 4:56 am EDT |
Extended Forecast for
Ronkonkoma NY
Today
High: 57 °F
Sunny
Tonight
Low: 43 °F
Mostly Clear
Monday
High: 60 °F
Increasing
CloudsMonday Night
Low: 47 °F
Mostly Cloudy
Tuesday
High: 64 °F
Partly Sunny
Tuesday Night
Low: 45 °F
Partly Cloudy
Wednesday
High: 59 °F
Mostly Sunny
and BreezyWednesday Night
Low: 45 °F
Partly Cloudy
Thursday
High: 63 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 57. North wind 8 to 10 mph.
Tonight
Mostly clear, with a low around 43. Northeast wind 3 to 6 mph.
Monday
Increasing clouds, with a high near 60. Northeast wind 10 to 14 mph.
Monday Night
Mostly cloudy, with a low around 47. North wind 11 to 16 mph.
Tuesday
Partly sunny, with a high near 64. North wind around 18 mph, with gusts as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Mostly sunny, with a high near 59. Breezy.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 59.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
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)
2:22 am EDT Oct 18, 2026
5am EDT Oct 18, 2026-6pm EDT Oct 24, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
