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.

Overcast

43°F

6°C

Humidity 93%
Wind Speed Calm
Barometer 29.48 in (998.1 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 14 Jan 10:56 pm EST
Extended Forecast for

Old Saybrook Center CT

  • Tonight

    Tonight: A 50 percent chance of rain, mainly before 4am. Cloudy, with a steady temperature around 43. South wind around 8 mph.

    Low: 43 °F

    Chance Rain

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a temperature falling to around 37 by 5pm. Southwest wind 7 to 17 mph.

    High: 42 °F⇓

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 23. Wind chill values between 10 and 20. Breezy, with a west wind 16 to 20 mph.

    Low: 23 °F

    Mostly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Sunny, with a high near 36. Wind chill values between 10 and 20. West wind 13 to 18 mph.

    High: 36 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a steady temperature around 34. Southwest wind 8 to 11 mph.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of rain. Mostly cloudy, with a high near 41.

    High: 41 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of snow after 1pm. Mostly cloudy, with a high near 36.

    High: 36 °F

    Partly Sunny
    then Chance
    Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before 1am. Partly cloudy, with a low around 22.

    Low: 22 °F

    Chance Snow

Detailed Forecast

Tonight
A 50 percent chance of rain, mainly before 4am. Cloudy, with a steady temperature around 43. South wind around 8 mph.
Thursday
Cloudy through mid morning, then gradual clearing, with a temperature falling to around 37 by 5pm. Southwest wind 7 to 17 mph.
Thursday Night
Partly cloudy, with a low around 23. Wind chill values between 10 and 20. Breezy, with a west wind 16 to 20 mph.
Friday
Sunny, with a high near 36. Wind chill values between 10 and 20. West wind 13 to 18 mph.
Friday Night
Mostly cloudy, with a steady temperature around 34. Southwest wind 8 to 11 mph.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
A 30 percent chance of snow after 1pm. Mostly cloudy, with a high near 36.
Sunday Night
A 30 percent chance of snow before 1am. Partly cloudy, with a low around 22.
M.L.King Day
Sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Mostly sunny, with a high near 27.
Tuesday Night
Partly cloudy, with a low around 17.
Wednesday
Mostly sunny, with a high near 29.
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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:
2:31 pm EST Jan 14, 2026
Forecast Valid:
11pm EST Jan 14, 2026-6pm EST Jan 21, 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