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September 17th, 2025 :: 6:19 pm EDT   

Local Weather Report for
Islip
New York, United States

 Current Islip Weather Conditions Updated September 17th at 4:56 pm 
Overcast
Temperature:22°C Dew Point:16°C
Barometer:101.7 kPa Wind:N 41 Km/h
Humidity:68.8% Visibility:0 Km
 
 Islip Weather Forecast Summary  
 
Today
Sep 17th
Thursday
Sep 18th
Friday
Sep 19th
Saturday
Sep 20th
Sunday
Sep 21st
Showers Cloudy Mostly Sunny Sunny Cloudy
20°C
22°C
19°C
25°C
19°C
20°C
16°C
20°C
16°C
 
 Islip Detailed Weather Forecast  
 
Wednesday, September 17th, 2025
Evening Temperature: 20°C
Cloudy with a chance of showers. Windy at times.
Thursday, September 18th, 2025
Overnight Temperature: 19°C
Cloudy with a slight chance of showers. Windy at times.
Morning Temperature: 20°C
Cloudy with a slight chance of showers.
Afternoon Temperature: 22°C
Sunny.
Evening Temperature: 21°C
Clear. Slight chance of a thunderstorm.
Friday, September 19th, 2025
Overnight Temperature: 20°C
Clear.
Morning Temperature: 24°C
Sunny.
Afternoon Temperature: 24°C
Sunny with cloudy periods. Windy at times.
Evening Temperature: 20°C
Clear. Windy.
Saturday, September 20th, 2025
Overnight Temperature: 17°C
Clear. Windy.
Morning Temperature: 18°C
Sunny. Windy at times.
Afternoon Temperature: 19°C
Sunny. Windy at times.
Evening Temperature: 16°C
Clear. Windy at times.
Sunday, September 21st, 2025
Overnight Temperature: 16°C
Clear. Windy at times.
Morning Temperature: 19°C
Sunny. Windy at times.
Afternoon Temperature: 17°C
Cloudy. Windy at times.
Evening Temperature: 16°C
Cloudy. Windy at times.
Monday, September 22nd, 2025
Overnight Temperature: 16°C
Cloudy. Windy at times.
Morning Temperature: 19°C
Cloudy.
Afternoon Temperature: 20°C
A mix of cloud and sun.
Evening Temperature: 18°C
Clear.
Tuesday, September 23rd, 2025
Overnight Temperature: 19°C
Clear.
Morning Temperature: 21°C
A mix of cloud and sun.
Afternoon Temperature: 22°C
Cloudy. Windy at times.
Evening Temperature: 20°C
A mix of cloudy and clear skies.
Wednesday, September 24th, 2025
Overnight Temperature: 20°C
Cloudy.
Morning Temperature: 23°C
A mix of cloud and sun.
Afternoon Temperature: 22°C
A mix of cloud and sun. Windy at times.
Evening Temperature: 20°C
Cloudy.
Thursday, September 25th, 2025
Overnight Temperature: 20°C
Clear.
Morning Temperature: 24°C
Sunny. Windy at times.
Afternoon Temperature: 22°C
Sunny with a chance of showers. Windy at times.
Evening Temperature: 20°C
Cloudy with showers likely. Windy at times.





 

  [ Local Weather Report ]
Islandia, NY 
4:56 PM  22°C
Overcast
 
Lake Grove, NY 
4:56 PM  22°C
Overcast
 
Patchogue, NY 
4:56 PM  22°C
Overcast
 
Village Of The Branch, NY 
4:56 PM  22°C
Overcast
 
Smithtown, NY 
4:56 PM  22°C
Overcast
 
Head Of The Harbor, NY 
4:56 PM  22°C
Overcast
 
Bellport, NY 
4:45 PM  19°C
light rain
 
Nissequogue, NY 
4:56 PM  22°C
Overcast
 
Brookhaven, NY 
4:45 PM  19°C
light rain
 
Port Jefferson, NY 
4:56 PM  22°C
Overcast

This WeatherCity Weather Forecast for Islip, New York, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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