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.

Light Rain Fog/Mist

35°F

2°C

Humidity 96%
Wind Speed N 7 mph
Barometer 29.65 in (1003.8 mb)
Dewpoint 34°F (1°C)
Visibility 4.00 mi
Wind Chill29°F (-2°C)
Last update 7 Jan 3:56 am EST
Extended Forecast for

Old Saybrook Center CT

  • Overnight

    Overnight: A 30 percent chance of rain. Areas of fog. Otherwise, cloudy, with a steady temperature around 37. Northeast wind around 7 mph.

    Low: 37 °F

    Chance Rain
    and Areas Fog

  • Wednesday

    Wednesday: A 30 percent chance of rain, mainly before 10am. Areas of fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 43. Light and variable wind becoming west 6 to 11 mph in the morning.

    High: 43 °F

    Chance Rain
    and Areas Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 31. Wind chill values between 25 and 30. Northwest wind around 9 mph.

    Low: 31 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 44. Wind chill values between 25 and 35. West wind 6 to 8 mph.

    High: 44 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31. Light and variable wind.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of rain after 1pm. Mostly cloudy, with a high near 49.

    High: 49 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain. Cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

  • Saturday

    Saturday: Rain, mainly after 1pm. High near 49. Chance of precipitation is 80%.

    High: 49 °F

    Chance Rain
    then Rain

  • Saturday Night

    Saturday Night: Rain. Low around 40. Chance of precipitation is 80%.

    Low: 40 °F

    Rain

Detailed Forecast

Overnight
A 30 percent chance of rain. Areas of fog. Otherwise, cloudy, with a steady temperature around 37. Northeast wind around 7 mph.
Wednesday
A 30 percent chance of rain, mainly before 10am. Areas of fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 43. Light and variable wind becoming west 6 to 11 mph in the morning.
Wednesday Night
Mostly clear, with a low around 31. Wind chill values between 25 and 30. Northwest wind around 9 mph.
Thursday
Sunny, with a high near 44. Wind chill values between 25 and 35. West wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 31. Light and variable wind.
Friday
A 50 percent chance of rain after 1pm. Mostly cloudy, with a high near 49.
Friday Night
A 40 percent chance of rain. Cloudy, with a low around 41.
Saturday
Rain, mainly after 1pm. High near 49. Chance of precipitation is 80%.
Saturday Night
Rain. Low around 40. Chance of precipitation is 80%.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 47.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Sunny, with a high near 38.
Monday Night
Mostly clear, with a low around 27.
Tuesday
Mostly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Old Saybrook Center CT
 41.29°N 72.39°W (Elev. 89 ft)
Last Update:
1:53 am EST Jan 7, 2026
Forecast Valid:
4am EST Jan 7, 2026-6pm EST Jan 13, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation