Hazardous Weather Conditions
Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Overcast
33°F
1°C
| Humidity | 89% |
| Wind Speed | S 7 mph |
| Barometer | 30.15 in (1020.9 mb) |
| Dewpoint | 30°F (-1°C) |
| Visibility | 8.00 mi |
| Wind Chill | 27°F (-3°C) |
| Last update | 17 Feb 5:56 am EST |
Extended Forecast for
Islip Terrace NY
Today
High: 43 °F
Decreasing
CloudsTonight
Low: 31 °F
Partly Cloudy
then Patchy
FogWednesday
High: 43 °F
Rain
Wednesday Night
Low: 32 °F
Rain Likely
Thursday
High: 40 °F
Mostly Cloudy
Thursday Night
Low: 30 °F
Chance Rain
then Chance
Rain/SnowFriday
High: 41 °F
Rain
Friday Night
Low: 31 °F
Chance Rain
then Chance
Rain/SnowSaturday
High: 41 °F
Chance
Rain/Snow
Detailed Forecast
Today
Cloudy, then gradually becoming mostly sunny, with a high near 43. Light southwest wind increasing to 5 to 9 mph in the morning.
Tonight
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 31. Light west wind.
Wednesday
Rain. High near 43. Calm wind becoming southeast around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely before 1am. Mostly cloudy, with a low around 32. Light north wind. Chance of precipitation is 60%.
Thursday
Mostly cloudy, with a high near 40. Light and variable wind becoming northeast 5 to 7 mph in the morning.
Thursday Night
A chance of rain before 1am, then a chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Friday
Rain. High near 41. Chance of precipitation is 80%.
Friday Night
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Saturday
A chance of rain and snow before 1pm. Mostly cloudy, with a high near 41. Chance of precipitation is 30%.
Saturday Night
A 30 percent chance of snow after 1am. Mostly cloudy, with a low around 28.
Sunday
A 50 percent chance of snow. Partly sunny, with a high near 38.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 25.
Monday
Partly sunny, with a high near 36.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT 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)
4:22 am EST Feb 17, 2026
6am EST Feb 17, 2026-6pm EST Feb 23, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
