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.

Mostly Cloudy

48°F

9°C

Humidity 50%
Wind Speed N 15 G 29 mph
Barometer 29.98 in (1015.2 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 27 Mar 11:56 am EDT
Extended Forecast for

Old Saybrook Center CT

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 48. North wind around 11 mph.

    High: 48 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 31. Northeast wind around 7 mph.

    Low: 31 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 38. Wind chill values between 20 and 30. North wind 10 to 14 mph.

    High: 38 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 28. Northwest wind 3 to 7 mph.

    Low: 28 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 43. Southwest wind 6 to 15 mph.

    High: 43 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

  • Monday Night

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

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain after 8am. Partly sunny, with a high near 52.

    High: 52 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 48. North wind around 11 mph.
Tonight
Partly cloudy, with a low around 31. Northeast wind around 7 mph.
Saturday
Mostly sunny, with a high near 38. Wind chill values between 20 and 30. North wind 10 to 14 mph.
Saturday Night
Partly cloudy, with a low around 28. Northwest wind 3 to 7 mph.
Sunday
Mostly sunny, with a high near 43. Southwest wind 6 to 15 mph.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
Partly sunny, with a high near 52.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
A 30 percent chance of rain after 8am. Partly sunny, with a high near 52.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 45.
Wednesday
A 40 percent chance of rain. Partly sunny, with a high near 57.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 48.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 58.
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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:
7:52 am EDT Mar 27, 2026
Forecast Valid:
12pm EDT Mar 27, 2026-6pm EDT Apr 2, 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