Islip School, NY 14 Day Weather
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Islip School, NY Weather Forecast


Islip School, NY Weather Forecast Dated: 649 PM Fri Sep 18 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Friday, September 18, 2026
Mid-Morning
74°F 23°C
Overcast
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
76°F 25°C
Sunny
Warm and summery near 81°F 27°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds turning from the NNE to the N at 10 mph 16 km/h.
Saturday, September 19, 2026
Mid-Morning
64°F 18°C
Partly Cloudy
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
64°F 18°C
Sunny
Comfortable with temperatures reaching 70°F 21°C, cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with increasing humidity and steady pressure. Winds switching from the NE to the SE at 9 mph 14 km/h.
Sunday, September 20, 2026
Mid-Morning
65°F 19°C
Overcast
Mid-Afternoon
65°F 18°C
Light Rain
Early-Evening
66°F 19°C
Scattered Showers
Comfortable at 65°F 18°C, locally heavy downpours at times, with increasing humidity and barometric pressure falling. Winds moving from the SE to the S at 11 mph 18 km/h. Gusts up to 22 mph 35 km/h.
Monday, September 21, 2026
Mid-Morning
62°F 16°C
Overcast
Mid-Afternoon
67°F 19°C
Overcast
Early-Evening
66°F 19°C
Overcast
Cool with a high near 67°F 19°C, overcast throughout the day, with lower humidity and steady pressure. Winds swinging from the NNE to the ENE at 10 mph 16 km/h.
Tuesday, September 22, 2026
Mid-Morning
57°F 14°C
Light Rain
Mid-Afternoon
55°F 13°C
Light Rain
Early-Evening
54°F 12°C
Rain
Brisk around 55°F 13°C, persistent showers off and on through the day, with steady humidity and steady pressure. Winds shifting from the NE to the ENE at 16 mph 25 km/h. Gusts up to 29 mph 46 km/h.
Wednesday, September 23, 2026
Mid-Morning
58°F 15°C
Scattered Showers
Mid-Afternoon
62°F 17°C
Scattered Showers
Early-Evening
62°F 17°C
Scattered Showers
Mildly cool near 62°F 17°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds turning from the ENE to the NE at 19 mph 31 km/h. Gusts up to 33 mph 53 km/h.
Thursday, September 24, 2026
Mid-Morning
57°F 14°C
Light Showers
Mid-Afternoon
55°F 13°C
Scattered Showers
Early-Evening
55°F 13°C
Scattered Showers
Chilly near 55°F 13°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds switching from the NNE to the N at 18 mph 29 km/h. Gusts up to 32 mph 52 km/h.
Friday, September 25, 2026
Mid-Morning
59°F 15°C
Sunny
Mid-Afternoon
72°F 22°C
Sunny
Early-Evening
65°F 18°C
Sunny
Enjoyable around 72°F 22°C, cloudy through the afternoon, turning sunny this evening, with lower humidity and steady pressure. Winds blowing from the WNW at 15 mph 24 km/h. Gusts up to 28 mph 44 km/h.
Saturday, September 26, 2026
Mid-Morning
59°F 15°C
Cloudy
Mid-Afternoon
68°F 20°C
Sunny
Early-Evening
61°F 16°C
Sunny
Mild temperatures up to 68°F 20°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds swinging from the NNE to the NW at 10 mph 17 km/h.
Sunday, September 27, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
66°F 19°C
Cloudy
Early-Evening
64°F 18°C
Sunny
Mildly cool near 66°F 19°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds shifting from the N to the NW at 5 mph 8 km/h.
Monday, September 28, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
71°F 22°C
Sunny
Early-Evening
67°F 20°C
Sunny
Pleasant near 71°F 22°C, cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the SW to the SSW at 11 mph 18 km/h.
Tuesday, September 29, 2026
Mid-Morning
66°F 19°C
Sunny
Mid-Afternoon
73°F 23°C
Cloudy
Early-Evening
70°F 21°C
Overcast
Comfortable with temperatures reaching 73°F 23°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds switching from the WSW to the SSW at 10 mph 16 km/h.
Wednesday, September 30, 2026
Mid-Morning
68°F 20°C
Overcast
Mid-Afternoon
74°F 23°C
Overcast
Early-Evening
71°F 22°C
Overcast
Enjoyable around 74°F 23°C, overcast throughout the day, with steady humidity and steady pressure. Winds moving from the SW to the S at 7 mph 12 km/h.
Thursday, October 1, 2026
Mid-Morning
72°F 22°C
Overcast
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
72°F 22°C
Overcast
Mild temperatures up to 77°F 25°C, cloudy in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds swinging from the SSW to the SSE at 5 mph 9 km/h.
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