See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:37
Sunrise
18:50
Sunset
Moon
Waxing Crescent
12:31
Moonrise
20:52
Moonset
Daily Forecast
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Air Quality Data Available
Upgrade to access real-time air quality data for Old Saybrook.
Resources
UV Index
Humidity
Weather in Old Saybrook today, September 16, 2026
Expect a mostly clear day in Old Saybrook on September 16, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. The opening hours look fair, as cloud stays near 21% around 11:00. Morning errands should face fewer weather interruptions.
Temperatures climb from an overnight low near 12°C toward a daytime high of about 23°C. Relative humidity sits between 60% and 90%, reaching its peak around 23:00. Airflow remains manageable, reaching about 5.1 km/h around 20:00.
Expect persistent cloud later on, with amounts around 100% by 16:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 16.1 km on average, though it can drop toward 15.7 km in thicker cloud or showers. Daylight runs from 06:37 to 18:50, lasting 12 hours 12 minutes of sunlight today.
Overall, Old Saybrook on September 16, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 23°C.
Explore more weather forecasts
- Madison, Connecticut
- New York City, New York
- Waterford, Connecticut
- Los Angeles, California
- New London, Connecticut
- Brooklyn, New York
- Guilford, Connecticut
- Chicago, Illinois
- Montville Center, Connecticut
- Houston, Texas
- North Branford, Connecticut
- Queens, New York
- Ledyard, Connecticut
- Phoenix, Arizona
- Norwich, Connecticut
- Philadelphia, Pennsylvania
