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

38°F

3°C

Humidity 65%
Wind Speed N 5 mph
Barometer 30.21 in (1022.9 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 19 Nov 8:56 am EST
Extended Forecast for

Old Saybrook Center CT

  • Today

    Today: A 30 percent chance of rain before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 47. North wind 3 to 5 mph.

    High: 47 °F

    Chance Rain
    then Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 34. Calm wind becoming north around 6 mph after midnight.

    Low: 34 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 47. North wind around 6 mph becoming calm in the afternoon.

    High: 47 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 52. Southwest wind 5 to 11 mph.

    High: 52 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A 30 percent chance of rain before 1pm. Partly sunny, with a high near 51.

    High: 51 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of rain before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 47. North wind 3 to 5 mph.
Tonight
Partly cloudy, with a low around 34. Calm wind becoming north around 6 mph after midnight.
Thursday
Partly sunny, with a high near 47. North wind around 6 mph becoming calm in the afternoon.
Thursday Night
Mostly cloudy, with a low around 37. Calm wind.
Friday
A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 52. Southwest wind 5 to 11 mph.
Friday Night
A 30 percent chance of rain after 1am. Mostly cloudy, with a low around 41.
Saturday
A 30 percent chance of rain before 1pm. Partly sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 51.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Old Saybrook Center CT
 41.29°N 72.39°W (Elev. 89 ft)
Last Update:
5:50 am EST Nov 19, 2025
Forecast Valid:
9am EST Nov 19, 2025-6pm EST Nov 25, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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