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August 17th, 2025 :: 5:38 pm EDT   

Local Weather Report for
Sag Harbor
New York, United States

 Sag Harbor Weather Forecast Summary  
 
Today
Aug 17th
Monday
Aug 18th
Tuesday
Aug 19th
Wednesday
Aug 20th
Thursday
Aug 21st
Cloudy Cloudy Mix of Cloud and Sun Cloudy Mix of Cloud and Sun
75°F
68°F
65°F
69°F
66°F
69°F
67°F
73°F
66°F
 
 Sag Harbor Detailed Weather Forecast  
 
Sunday, August 17th, 2025
Evening Temperature: 73°F
Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy.
Monday, August 18th, 2025
Overnight Temperature: 67°F
Cloudy with a chance of showers. Wind 25 to 40 mph.
Morning Temperature: 66°F
Cloudy with a chance of showers. Wind 20 to 30 mph.
Afternoon Temperature: 67°F
Sunny with cloudy periods. Wind 20 to 30 mph.
Evening Temperature: 67°F
A mix of cloudy and clear skies. Windy.
Tuesday, August 19th, 2025
Overnight Temperature: 67°F
A mix of cloudy and clear skies. Windy.
Morning Temperature: 68°F
A mix of cloud and sun. Windy.
Afternoon Temperature: 68°F
Sunny. Windy.
Evening Temperature: 68°F
Clear with cloudy periods. Windy.
Wednesday, August 20th, 2025
Overnight Temperature: 68°F
A mix of cloudy and clear skies. Windy.
Morning Temperature: 68°F
Cloudy. Windy.
Afternoon Temperature: 69°F
A mix of cloud and sun. Wind 20 to 30 mph.
Evening Temperature: 67°F
Cloudy. Wind 20 to 30 mph.
Thursday, August 21st, 2025
Overnight Temperature: 66°F
A mix of cloudy and clear skies. Wind 25 to 40 mph.
Morning Temperature: 71°F
Sunny. Wind 20 to 30 mph.
Afternoon Temperature: 72°F
Sunny. Windy.
Evening Temperature: 71°F
Clear.
Friday, August 22nd, 2025
Overnight Temperature: 71°F
Clear.
Morning Temperature: 73°F
Sunny with a chance of showers. Windy.
Afternoon Temperature: 73°F
A mix of cloud and sun. Slight chance of a thunderstorm. Wind 20 to 30 mph.
Evening Temperature: 73°F
A mix of cloudy and clear skies. Wind 20 to 30 mph.
Saturday, August 23rd, 2025
Overnight Temperature: 73°F
Clear with cloudy periods. Slight chance of a thunderstorm. Windy.
Morning Temperature: 74°F
Sunny. Slight chance of a thunderstorm. Wind 20 to 30 mph.
Afternoon Temperature: 74°F
Sunny with cloudy periods. Wind 20 to 30 mph.
Evening Temperature: 73°F
Cloudy with a chance of showers. Slight chance of a thunderstorm. Wind 20 to 30 mph.
Sunday, August 24th, 2025
Overnight Temperature: 73°F
Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy.
Morning Temperature: 73°F
Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 73°F
Cloudy with a chance of showers. Slight chance of a thunderstorm.
Evening Temperature: 72°F
Cloudy with a slight chance of showers or thundershowers. Windy.
Monday, August 25th, 2025
Overnight Temperature: 67°F
Cloudy with a chance of showers. Wind 25 to 40 mph.
Morning Temperature: 69°F
Cloudy. Wind 20 to 30 mph.
Afternoon Temperature: 70°F
Cloudy. Windy.
Evening Temperature: 67°F
Cloudy. Windy.





 

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This WeatherCity Weather Forecast for Sag Harbor, 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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