| National Weather Service Forecast for:
Islip NY Issued by: National Weather Service New York, NY |
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| Updated: 2:34 am EDT Apr 6, 2026 | ||||||||||||||||||
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| Overnight |
Clear, with a steady temperature around 42. Northwest wind around 9 mph. |
| Monday |
Sunny, with a high near 53. Northwest wind around 10 mph, with gusts as high as 20 mph. |
| Monday Night |
A slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 39. West wind around 5 mph becoming light and variable. Chance of precipitation is 20%. |
| Tuesday |
Mostly sunny, with a high near 51. Northwest wind 8 to 14 mph. |
| Tuesday Night |
Mostly clear, with a low around 31. North wind 8 to 10 mph, with gusts as high as 20 mph. |
| Wednesday |
Sunny, with a high near 46. |
| Wednesday Night |
Mostly clear, with a low around 35. |
| Thursday |
Mostly sunny, with a high near 50. |
| Thursday Night |
Partly cloudy, with a low around 41. |
| Friday |
Mostly sunny, with a high near 59. |
| Friday Night |
Partly cloudy, with a low around 47. |
| Saturday |
Mostly sunny, with a high near 62. |
| Saturday Night |
Partly cloudy, with a low around 45. |
| Sunday |
Mostly sunny, with a high near 57. |
Forecast from NOAA-NWS for Islip NY.
