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

50°F

10°C

Humidity 100%
Wind Speed Calm
Barometer 30.02 in (1016.5 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 17 Apr 10:56 pm EDT
Extended Forecast for

Old Saybrook Center CT

  • Tonight

    Tonight: Partly cloudy, with a low around 50. Light north wind.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 56. Northeast wind 6 to 9 mph becoming east in the afternoon.

    High: 56 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 45. Southeast wind 3 to 7 mph.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 52. Southeast wind 6 to 11 mph becoming northwest 12 to 17 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 2am. Cloudy during the early evening, then gradual clearing, with a low around 38. Northwest wind 7 to 13 mph.

    Low: 38 °F

    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Tuesday Night

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

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 50. Light north wind.
Saturday
Partly sunny, with a high near 56. Northeast wind 6 to 9 mph becoming east in the afternoon.
Saturday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 45. Southeast wind 3 to 7 mph.
Sunday
Showers, mainly after 8am. High near 52. Southeast wind 6 to 11 mph becoming northwest 12 to 17 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A 20 percent chance of showers before 2am. Cloudy during the early evening, then gradual clearing, with a low around 38. Northwest wind 7 to 13 mph.
Monday
Mostly sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Sunny, with a high near 46.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 56.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Sunny, with a high near 56.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Old Saybrook Center CT
 41.29°N 72.39°W (Elev. 89 ft)
Last Update:
2:24 pm EDT Apr 17, 2026
Forecast Valid:
11pm EDT Apr 17, 2026-6pm EDT Apr 24, 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