Current conditions at
Islip, Long Island Mac Arthur Airport (KISP)
Lat: 40.79°NLon: 73.1°WElev: 98ft.
Partly Cloudy
49°F
9°C
| Humidity | 38% |
| Wind Speed | NW 12 G 22 mph |
| Barometer | 30.09 in (1019.0 mb) |
| Dewpoint | 24°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 44°F (7°C) |
| Last update | 18 Nov 1:56 pm EST |
Extended Forecast for
Central Islip NY
This Afternoon

High: 46 °F
Mostly Sunny
Tonight
Low: 35 °F
Mostly Cloudy
then Rain
LikelyWednesday
High: 48 °F
Rain Likely
then Slight
Chance RainWednesday Night

Low: 34 °F
Areas Frost
Thursday

High: 50 °F
Partly Sunny
Thursday Night

Low: 42 °F
Mostly Cloudy
Friday

High: 55 °F
Mostly Cloudy
Friday Night

Low: 40 °F
Mostly Cloudy
Saturday

High: 51 °F
Partly Sunny
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 46. West wind around 10 mph, with gusts as high as 20 mph.
Tonight
Rain likely, mainly after 4am. Increasing clouds, with a low around 35. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Wednesday
Rain likely, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 48. Calm wind becoming north around 6 mph. Chance of precipitation is 60%.
Wednesday Night
Areas of frost. Otherwise, mostly cloudy, with a low around 34. Light north wind.
Thursday
Partly sunny, with a high near 50. Northeast wind 3 to 6 mph.
Thursday Night
Mostly cloudy, with a low around 42.
Friday
Mostly cloudy, with a high near 55.
Friday Night
Mostly cloudy, with a low around 40.
Saturday
Partly sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 53.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Central Islip NY
40.79°N 73.2°W (Elev. 98 ft)
40.79°N 73.2°W (Elev. 98 ft)
12:46 pm EST Nov 18, 2025
2pm EST Nov 18, 2025-6pm EST Nov 24, 2025


