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

52°F

11°C

Humidity 53%
Wind Speed E 3 mph
Barometer 29.84 in (1010.5 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 24 Apr 8:56 am EDT
Extended Forecast for

Old Saybrook Center CT

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 54. North wind 3 to 6 mph.

    High: 54 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 39. Southeast wind around 6 mph becoming calm in the evening.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of rain, mainly after 2pm. Increasing clouds, with a high near 47. Southeast wind 7 to 9 mph.

    High: 47 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly between 8pm and 2am. Cloudy, with a low around 41. Southeast wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Rain Likely

  • Sunday

    Sunday: A 30 percent chance of rain. Partly sunny, with a high near 49. Northeast wind 8 to 13 mph.

    High: 49 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after 2pm. Partly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 54. North wind 3 to 6 mph.
Tonight
Mostly clear, with a low around 39. Southeast wind around 6 mph becoming calm in the evening.
Saturday
A 30 percent chance of rain, mainly after 2pm. Increasing clouds, with a high near 47. Southeast wind 7 to 9 mph.
Saturday Night
Rain likely, mainly between 8pm and 2am. Cloudy, with a low around 41. Southeast wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A 30 percent chance of rain. Partly sunny, with a high near 49. Northeast wind 8 to 13 mph.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 53.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 45.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 54.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 47.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Old Saybrook Center CT
 41.29°N 72.39°W (Elev. 89 ft)
Last Update:
7:02 am EDT Apr 24, 2026
Forecast Valid:
9am EDT Apr 24, 2026-6pm EDT Apr 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