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Islip, NY Weather Forecast for 5-Days

Updated: Thu May 14th 2026 10:00 PM EDT

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Islip, NY Weather – 5-14 – Scattered Showers
68° / 53°
Scattered Showers
Scattered showers are in the forecast for Islip, with a high of 68°F and a low of 53°F. The chance of rain is 88% with an estimated 0.17in. Wind will be moderate, blowing around 12mph on average and gusts of 12.2mph at 11 PM. High humidity with average of 81% is anticipated, the maximum being 84% at 11 PM and 84% being its lowest at 11 PM. Barometric pressure is its highest of 29.74inHg at 11 PM, a lowest point of 29.74inHg at 11 PM with an avg 29.74inHg.
Islip, NY Weather – 5-15 – Scattered Showers
65° / 50°

Weather Tomorrow

Scattered Showers
Islip could see passing showers with daytime highs of 65°F and nighttime lows near 50°F. The chance of rain is 89% with an estimated 0.02in. Winds will be light at 10mph and gusts of 13.2mph at 5 AM. The humidity will be on the higher side, averaging about 66%, the maximum being 86% at 12 AM and 42% being its lowest at 1 PM. Barometric pressure is its highest of 30.03inHg at 11 PM, a lowest point of 29.74inHg at 12 AM with an avg 29.84inHg.
Islip, NY Weather – 5-16 – Sunny
68° / 53°
Sunny
Daytime highs will reach 68°F with lows dropping to 53°F in Islip, where bright and sunny conditions. Wind will be moderate, blowing around 14mph on average and gusts of 22.3mph at 9 PM. The humidity will be on the higher side, averaging about 65%, the maximum being 82% at 2 AM and 45% being its lowest at 1 PM. Barometric pressure is its highest of 30.12inHg at 8 AM, a lowest point of 30.01inHg at 7 PM with an avg 30.06inHg.
Islip, NY Weather – 5-17 – Scattered Showers
79° / 57°
Scattered Showers
Highs will reach 79°F with lows near 57°F in Islip, where scattered showers are. The chance of rain is 84% with an estimated 0.01in. Wind will be moderate, blowing around 11mph on average and gusts of 20.4mph at 12 AM. The humidity will be on the higher side, averaging about 66%, the maximum being 85% at 4 AM and 49% being its lowest at 5 PM. Barometric pressure is its highest of 30.12inHg at 11 PM, a lowest point of 29.97inHg at 4 AM with an avg 30.02inHg.
Islip, NY Weather – 5-18 – Sunny
73° / 63°
Sunny
In Islip, a sunny day is likely with a high near 73°F and a low around 63°F. Winds will be light at 8mph and gusts of 15.4mph at 10 PM. The humidity will be on the higher side, averaging about 70%, the maximum being 86% at 11 PM and 56% being its lowest at 11 AM. Barometric pressure is its highest of 30.22inHg at 10 AM, a lowest point of 30.13inHg at 12 AM with an avg 30.17inHg.
Islip, NY Weather – 5-19 – Sunny
80° / 62°
Sunny
Daytime highs will reach 80°F with lows dropping to 62°F in Islip, where bright and sunny conditions. Wind will be moderate, blowing around 15mph on average and gusts of 31mph at 11 PM. The humidity will be on the higher side, averaging about 76%, the maximum being 89% at 5 AM and 51% being its lowest at 2 PM. Barometric pressure is its highest of 30.13inHg at 12 AM, a lowest point of 29.97inHg at 7 PM with an avg 30.05inHg.

Currently

Light Rain 56°F
29.73 inHg.
Barometer
87%
Humidity
NNW 14.4 mph
Wind
Light Rain

5 Day Forecast Nearby

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