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Islip School, NY Weather Forecast
Islip School, NY Weather Forecast Date: 229 PM EDT Sat Sep 19 2026
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This Afternoon... Partly sunny. Highs in the upper 60s. East winds 10 to 15 mph.
Tonight... Mostly cloudy. Lows in the upper 50s. Southeast winds 5 to 10 mph.
Sunday... Cloudy. A chance of showers in the morning, then showers likely in the afternoon. Highs in the lower 70s. Southeast winds 15 to 20 mph. Chance of rain 70%.
Sunday Night... Rain in the evening, then showers after midnight. Lows in the upper 50s. South winds 10 to 15 mph, becoming northwest 15 to 20 mph after midnight. Gusts up to 30 mph. Chance of rain 80%.
Monday... Partly sunny in the morning, then becoming mostly cloudy. A 50% chance of showers. Highs in the upper 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph.
Monday Night... Mostly cloudy with a 30% chance of showers. Lows in the mid 50s.
Tuesday... Mostly cloudy with a 30% chance of showers. Breezy with highs in the mid 60s.
Tuesday Night... Mostly cloudy and breezy. Lows in the mid 50s.
Wednesday... Mostly cloudy and windy. Highs in the mid 60s.
Wednesday Night... Mostly cloudy and windy. Lows in the mid 50s.
Thursday... Mostly cloudy with a 40% chance of showers. Windy with highs in the mid 60s.
Thursday Night... Mostly cloudy with a 40% chance of showers. Windy with lows in the lower 50s.
Friday... Mostly cloudy with a 50% chance of showers. Windy with highs in the mid 60s.
Friday Night... Mostly cloudy with a 50% chance of showers. Windy with lows in the mid 50s.
POP = Probability of Precipitation
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