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.

Light Rain

70°F

21°C

Humidity 90%
Wind Speed N 7 mph
Barometer 29.82 in (1009.6 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 23 Jun 4:56 pm EDT
Extended Forecast for

Old Saybrook Center CT

  • This Afternoon

    This Afternoon: Showers. High near 71. Light northwest wind. Chance of precipitation is 90%.

    High: 71 °F

    Showers

  • Tonight

    Tonight: Showers, mainly before 11pm. Patchy fog between 8pm and 2am. Low around 61. Calm wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 61 °F

    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Wednesday

    Wednesday: Sunny, with a high near 82. Northwest wind 5 to 7 mph.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely after 2am. Increasing clouds, with a low around 64. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 64 °F

    Partly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers after 8pm. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Showers. High near 71. Light northwest wind. Chance of precipitation is 90%.
Tonight
Showers, mainly before 11pm. Patchy fog between 8pm and 2am. Low around 61. Calm wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Sunny, with a high near 82. Northwest wind 5 to 7 mph.
Wednesday Night
Mostly clear, with a low around 61. Calm wind.
Thursday
Sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
Showers likely after 2am. Increasing clouds, with a low around 64. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers after 8pm. Mostly cloudy, with a low around 63.
Saturday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 62.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 62.
Monday
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Old Saybrook Center CT
 41.29°N 72.36°W (Elev. 3 ft)
Last Update:
2:20 pm EDT Jun 23, 2026
Forecast Valid:
5pm EDT Jun 23, 2026-6pm EDT Jun 30, 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