| National Weather Service Forecast for:
Islip NY Issued by: National Weather Service New York, NY |
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| Updated: 12:53 am EST Feb 2, 2026 | ||||||||||||||||||
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| Today |
Sunny, with a high near 30. Wind chill values between zero and 10. Northwest wind 8 to 10 mph, with gusts as high as 20 mph. |
| Tonight |
Mostly clear, with a low around 14. Northwest wind 3 to 5 mph. |
| Tuesday |
Mostly sunny, with a high near 32. Wind chill values between 10 and 20. West wind 3 to 7 mph. |
| Tuesday Night |
A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 23. West wind around 5 mph becoming calm in the evening. |
| Wednesday |
Mostly cloudy, then gradually becoming sunny, with a high near 32. Light northwest wind increasing to 5 to 9 mph in the morning. |
| Wednesday Night |
Partly cloudy, with a low around 14. |
| Thursday |
Mostly sunny, with a high near 28. |
| Thursday Night |
Partly cloudy, with a low around 14. |
| Friday |
A 30 percent chance of snow after 1pm. Mostly cloudy, with a high near 31. |
| Friday Night |
A 30 percent chance of snow before 1am. Mostly cloudy, with a low around 9. |
| Saturday |
Mostly sunny and cold, with a high near 18. Blustery. |
| Saturday Night |
Partly cloudy, with a low around 5. Blustery. |
| Sunday |
Mostly sunny and cold, with a high near 19. Blustery. |
Forecast from NOAA-NWS for Islip NY.
