Current Conditions

Central Islip, New York

64°F18°C
Partly Cloudy

Wind

ENE 22 mph35 km/h

Humidity

64%

Cloud Cover

97%

As of Wednesday, September 23, 2026 at 10:07 AM EDT

Today's Outlook

Day

Overcast and mild, with a high of 65°F18°C and morning low of 59°F15°C. Windy from the NE at 21 to 22 mph33 to 35 km/h. Dry air.

Night

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

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Partly CloudyHigh 65°F18°CLow 58°F15°CPrecip 0 in0 mmCloud 80%Wind NE 20 mph32 km/hWednesday: Overcast and mild, with a high of 65°F18°C and morning low of 59°F15°C. Windy from the NE at 21 to 22 mph33 to 35 km/h. Dry air. Wednesday Night: Mostly cloudy, with a low around 58°F15°C. Windy from the NE at 19 mph30 km/h.
CloudyHigh 65°F19°CLow 56°F13°CPrecip 0 in0.1 mm1%Cloud 86%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 56°F13°C. Windy from the NE at 18 to 19 mph29 to 31 km/h.
RainHigh 63°F17°CLow 57°F14°CPrecip 0.57 in14.4 mm77%Cloud 95%Wind NNE 23 mph37 km/hFriday: Overcast and mild, with a high of 63°F17°C and morning low of 58°F14°C. Windy from the NNE at 23 to 25 mph37 to 40 km/h. 68% chance of rain throughout the day. Dry air. Friday Night: Overcast, with a low around 57°F14°C. Windy from the NNE at 23 to 26 mph37 to 42 km/h. 77% chance of rain throughout the night.
RainHigh 62°F17°CLow 60°F16°CPrecip 1.09 in27.7 mm90%Cloud 96%Wind NNE 24 mph38 km/hSaturday: Overcast and mild, with a high of 62°F17°C. Windy from the NNE at 24 to 25 mph38 to 39 km/h. 87% chance of rain throughout the day. Saturday Night: Overcast, with a low around 60°F16°C. Windy from the NNE at 24 to 26 mph38 to 42 km/h. 90% chance of rain throughout the night.
RainHigh 63°F17°CLow 60°F16°CPrecip 0.96 in24.4 mm90%Cloud 98%Wind N 16 mph26 km/hSunday: Overcast and mild, with a high of 63°F17°C. Windy from the N at 16 to 18 mph26 to 29 km/h. 90% chance of rain throughout the day. Sunday Night: Overcast, with a low around 60°F16°C. Windy from the N at 16 to 20 mph26 to 33 km/h. 89% chance of rain throughout the night.
Light RainHigh 65°F18°CLow 61°F16°CPrecip 0.11 in2.7 mm45%Cloud 88%Wind NW 9 mph15 km/hMonday: Overcast and mild, with a high of 65°F18°C. Breezy from the WNW at 10 mph15 km/h. 35% chance of drizzle throughout the day. Monday Night: Overcast, with a low around 61°F16°C. Breezy from the NW at 9 to 11 mph15 to 18 km/h. 45% chance of light rain overnight.
Partly CloudyHigh 67°F20°CLow 61°F16°CPrecip 0.01 in0.2 mm4%Cloud 63%Wind WNW 6 mph9 km/hTuesday: Mostly cloudy and mild, with a high of 67°F20°C and morning low of 61°F16°C. Light wind from the WNW around 6 mph9 km/h. Tuesday Night: Mostly cloudy, with a low around 61°F16°C. Breezy from the W at 6 to 7 mph9 to 11 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 2365°F18°C58°F15°C0 in0 mm· —80%Partly CloudyNE 20 mph32 km/h
ThursdaySep 2465°F19°C56°F13°C0 in0.1 mm· 1%86%CloudyNE 18 mph29 km/h
FridaySep 2563°F17°C57°F14°C0.57 in14.4 mm· 77%95%RainNNE 23 mph37 km/h
SaturdaySep 2662°F17°C60°F16°C1.09 in27.7 mm· 90%96%RainNNE 24 mph38 km/h
SundaySep 2763°F17°C60°F16°C0.96 in24.4 mm· 90%98%RainN 16 mph26 km/h
MondaySep 2865°F18°C61°F16°C0.11 in2.7 mm· 45%88%Light RainNW 9 mph15 km/h
TuesdaySep 2967°F20°C61°F16°C0.01 in0.2 mm· 4%63%Partly CloudyWNW 6 mph9 km/h
WednesdaySep 3069°F21°C63°F17°C0.01 in0.2 mm· 2%51%Partly CloudySSW 6 mph10 km/h
ThursdayOct 170°F21°C65°F18°C0.07 in1.7 mm· 16%61%DrizzleSSW 9 mph15 km/h
FridayOct 270°F21°C65°F18°C0.13 in3.2 mm· 19%60%ShowersWSW 10 mph16 km/h
SaturdayOct 367°F20°C62°F17°C0.14 in3.6 mm· 21%62%ShowersSSW 10 mph16 km/h
SundayOct 468°F20°C63°F17°C0.24 in6 mm· 24%61%ShowersSSW 10 mph16 km/h
MondayOct 567°F19°C62°F16°C0.14 in3.5 mm· 21%56%ShowersW 10 mph17 km/h
TuesdayOct 666°F19°C60°F16°C0.16 in4.1 mm· 20%49%ShowersW 11 mph18 km/h
WednesdayOct 765°F18°C59°F15°C0.13 in3.3 mm· 15%44%ShowersW 11 mph18 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: 40.7906°N, 73.2018°W·Elevation: 27m·Timezone: America/New_York·Population: 34,450