National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

76°F

24°C

Humidity 54%
Wind Speed W 9 G 18 mph
Barometer 29.57 in (1001.3 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 19 Jun 1:56 am EDT
Extended Forecast for

Old Saybrook Center CT

  • Overnight

    Overnight: Partly cloudy, with a low around 66. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 80. West wind 8 to 17 mph, with gusts as high as 29 mph.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Clear, with a low around 62. West wind 7 to 9 mph.

    Low: 62 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 80. West wind 15 to 17 mph, with gusts as high as 29 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Showers, mainly after 2pm. High near 76. Chance of precipitation is 80%.

    High: 76 °F

    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers. Low around 63. Chance of precipitation is 80%.

    Low: 63 °F

    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 66. West wind around 10 mph, with gusts as high as 20 mph.
Juneteenth
Mostly sunny, with a high near 80. West wind 8 to 17 mph, with gusts as high as 29 mph.
Friday Night
Clear, with a low around 62. West wind 7 to 9 mph.
Saturday
Sunny, with a high near 80. West wind 15 to 17 mph, with gusts as high as 29 mph.
Saturday Night
Mostly clear, with a low around 61. Northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 62.
Monday
Showers, mainly after 2pm. High near 76. Chance of precipitation is 80%.
Monday Night
Showers. Low around 63. Chance of precipitation is 80%.
Tuesday
Showers likely, mainly before 8am. Partly sunny, with a high near 81. Chance of precipitation is 60%.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Old Saybrook Center CT
 41.29°N 72.36°W (Elev. 3 ft)
Last Update:
4:34 pm EDT Jun 18, 2026
Forecast Valid:
2am EDT Jun 19, 2026-6pm EDT Jun 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation