Current Conditions

Islip, New York

60°F16°C
Partly Cloudy

Wind

NE 18 mph29 km/h

Humidity

68%

Cloud Cover

94%

As of Tuesday, September 22, 2026 at 10:10 PM EDT

Today's Outlook

Night

Mostly cloudy, with a low around 58°F15°C. Windy from the NE at 18 to 19 mph30 to 30 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Partly CloudyHigh 65°F19°CLow 58°F15°CPrecip 0 in0 mmCloud 74%Wind NE 19 mph31 km/hWednesday: Mostly cloudy and mild, with a high of 65°F19°C and morning low of 59°F15°C. Windy from the NE at 20 to 21 mph32 to 34 km/h. Dry air. Wednesday Night: Mostly cloudy, with a low around 58°F15°C. Windy from the NE at 18 to 19 mph30 to 30 km/h.
CloudyHigh 65°F19°CLow 57°F14°CPrecip 0 in0.1 mmCloud 83%Wind NE 18 mph29 km/hThursday: Overcast and mild, with a high of 65°F19°C and morning low of 57°F14°C. Windy from the NE at 18 to 19 mph29 to 31 km/h. Dry air. Thursday Night: Overcast, with a low around 57°F14°C. Windy from the NE at 18 mph28 km/h.
Light RainHigh 66°F19°CLow 58°F15°CPrecip 0.37 in9.3 mm64%Cloud 91%Wind NNE 22 mph36 km/hFriday: Overcast and mild, with a high of 66°F19°C and morning low of 59°F15°C. Windy from the NNE at 23 mph36 km/h. 53% chance of light rain throughout the day. Dry air. Friday Night: Overcast, with a low around 58°F15°C. Windy from the NNE at 22 to 24 mph36 to 39 km/h. 64% chance of light rain throughout the night.
RainHigh 63°F17°CLow 61°F16°CPrecip 0.85 in21.7 mm83%Cloud 92%Wind NNE 24 mph38 km/hSaturday: Overcast and mild, with a high of 63°F17°C. Windy from the NNE at 24 mph38 km/h. 78% chance of rain throughout the day. Saturday Night: Overcast, with a low around 61°F16°C. Windy from the NNE at 24 to 25 mph38 to 40 km/h. 83% chance of rain throughout the night.
RainHigh 63°F17°CLow 61°F16°CPrecip 0.75 in19.1 mm86%Cloud 96%Wind N 18 mph29 km/hSunday: Overcast and mild, with a high of 63°F17°C. Windy from the N at 18 to 19 mph29 to 31 km/h. 81% chance of rain throughout the day. Sunday Night: Overcast, with a low around 61°F16°C. Windy from the N at 18 to 21 mph28 to 34 km/h. 86% chance of rain throughout the night.
Light RainHigh 66°F19°CLow 61°F16°CPrecip 0.08 in2.1 mm35%Cloud 84%Wind NW 10 mph17 km/hMonday: Overcast and mild, with a high of 66°F19°C and morning low of 61°F16°C. Breezy from the NW at 11 mph17 km/h. 23% chance of drizzle throughout the day. Monday Night: Overcast, with a low around 61°F16°C. Breezy from the NW at 10 to 13 mph17 to 21 km/h. 35% chance of light rain throughout the night.
Partly CloudyHigh 68°F20°CLow 62°F17°CPrecip 0.02 in0.4 mm4%Cloud 55%Wind WNW 6 mph10 km/hTuesday: Mostly cloudy and warm, with a high of 68°F20°C and morning low of 62°F17°C. Breezy from the NW at 6 to 7 mph10 to 11 km/h. Tuesday Night: Mostly cloudy, with a low around 62°F17°C. Breezy from the WNW at 6 to 8 mph10 to 12 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 2365°F19°C58°F15°C0 in0 mm· —74%Partly CloudyNE 19 mph31 km/h
ThursdaySep 2465°F19°C57°F14°C0 in0.1 mm· —83%CloudyNE 18 mph29 km/h
FridaySep 2566°F19°C58°F15°C0.37 in9.3 mm· 64%91%Light RainNNE 22 mph36 km/h
SaturdaySep 2663°F17°C61°F16°C0.85 in21.7 mm· 83%92%RainNNE 24 mph38 km/h
SundaySep 2763°F17°C61°F16°C0.75 in19.1 mm· 86%96%RainN 18 mph29 km/h
MondaySep 2866°F19°C61°F16°C0.08 in2.1 mm· 35%84%Light RainNW 10 mph17 km/h
TuesdaySep 2968°F20°C62°F17°C0.02 in0.4 mm· 4%55%Partly CloudyWNW 6 mph10 km/h
WednesdaySep 3069°F20°C63°F17°C0.02 in0.4 mm· 3%53%Partly CloudySSE 6 mph10 km/h
ThursdayOct 170°F21°C64°F18°C0.09 in2.2 mm· 17%67%DrizzleS 9 mph15 km/h
FridayOct 269°F21°C64°F18°C0.17 in4.2 mm· 26%65%ShowersS 10 mph16 km/h
SaturdayOct 369°F21°C63°F17°C0.13 in3.3 mm· 19%56%ShowersSW 10 mph16 km/h
SundayOct 468°F20°C63°F17°C0.13 in3.3 mm· 19%62%ShowersSW 9 mph15 km/h
MondayOct 567°F20°C62°F17°C0.16 in4.1 mm· 21%62%ShowersSW 10 mph17 km/h
TuesdayOct 667°F19°C61°F16°C0.1 in2.5 mm· 18%53%DrizzleW 10 mph16 km/h
WednesdayOct 766°F19°C60°F15°C0.12 in3 mm· 19%48%ShowersWNW 11 mph17 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 40.7298°N, 73.2104°W·Elevation: 4m·Timezone: America/New_York·Population: 18,689