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

42°F

6°C

Humidity 76%
Wind Speed SW 7 mph
Barometer 30.37 in (1028.4 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 30 Mar 1:56 am EDT
Extended Forecast for

Old Saybrook Center CT

  • Overnight

    Overnight: Mostly cloudy, with a low around 40. Southwest wind around 7 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 57. Southwest wind 9 to 14 mph, with gusts as high as 29 mph.

    High: 57 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 50 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 47. Southwest wind 6 to 9 mph, with gusts as high as 22 mph.

    Low: 47 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers before 2pm. Mostly cloudy, with a high near 60. South wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 60 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 49. Southwest wind 9 to 13 mph, with gusts as high as 25 mph.

    Low: 49 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers likely after 2pm. Partly sunny, with a high near 64. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Partly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Showers
    Likely

  • Thursday

    Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 48.

    High: 48 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of rain. Cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 40. Southwest wind around 7 mph, with gusts as high as 20 mph.
Monday
Mostly cloudy, with a high near 57. Southwest wind 9 to 14 mph, with gusts as high as 29 mph.
Monday Night
A 50 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 47. Southwest wind 6 to 9 mph, with gusts as high as 22 mph.
Tuesday
A 40 percent chance of showers before 2pm. Mostly cloudy, with a high near 60. South wind 8 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 49. Southwest wind 9 to 13 mph, with gusts as high as 25 mph.
Wednesday
Showers likely after 2pm. Partly sunny, with a high near 64. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 48.
Thursday Night
A 30 percent chance of rain. Cloudy, with a low around 40.
Friday
A 30 percent chance of rain. Cloudy, with a high near 57.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 46.
Saturday
A 30 percent chance of rain. Mostly cloudy, with a high near 58.
Saturday Night
A 40 percent chance of rain. Cloudy, with a low around 43.
Sunday
A 50 percent chance of rain. Cloudy, with a high near 58.
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 72.36°W (Elev. 3 ft)
Last Update:
2:28 am EDT Mar 30, 2026
Forecast Valid:
2am EDT Mar 30, 2026-6pm EDT Apr 5, 2026
 
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