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Town of Islip, New YorkIslip, NY 7-Day Weather Forecast
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Islip Weather Forecast
Islip, NY Weather Forecast Date: 233 PM EDT Fri Oct 30 2026
Weather forecast for Islip, NY
Today Hi: 70°FHi: 21°C Lo: 41°F Lo: 5°C |
This Afternoon... Sunny. Highs around 70. Northwest winds 15 to 20 mph with gusts up to 30 mph. |
| Sat Hi: 55°FHi: 13°C Lo: 39°F Lo: 4°C |
Saturday... Sunny. Highs in the mid 50s. North winds 10 to 15 mph with gusts up to 25 mph. |
| Sun Hi: 60°FHi: 16°C Lo: 45°F Lo: 7°C |
Sunday... Patchy frost in the morning. Mostly sunny. Highs around 60. North winds around 5 mph, becoming west in the afternoon. |
| Mon Hi: 65°FHi: 18°C Lo: 50°F Lo: 10°C |
Monday... Mostly sunny. Highs in the mid 60s. |
| Tue Hi: 65°FHi: 18°C Lo: 51°F Lo: 11°C |
Tuesday... Mostly sunny. Highs in the mid 60s. |
| Wed Hi: 65°FHi: 18°C Lo: 55°F Lo: 13°C |
Wednesday... Mostly sunny. Highs in the mid 60s. |
Thu Hi: 69°FHi: 21°C Lo: 59°F Lo: 15°C |
Thursday... Mostly cloudy with a 50% chance of showers. Highs in the upper 60s. |
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