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

54°F

12°C

Humidity 51%
Wind Speed S 7 mph
Barometer 29.99 in (1015.4 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 9 Mar 4:56 pm EDT
Extended Forecast for

Old Saybrook Center CT

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, increasing clouds, with a low around 39. Southwest wind 3 to 7 mph.

    Low: 39 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 62. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 62 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 41. South wind around 6 mph becoming calm in the evening.

    Low: 41 °F

    Patchy Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers. Mostly cloudy, with a high near 58. South wind 6 to 11 mph.

    High: 58 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 48. South wind around 14 mph.

    Low: 48 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of rain before 2pm, then a chance of rain and snow. Mostly cloudy, with a temperature rising to near 49 by 9am, then falling to around 43 during the remainder of the day. Chance of precipitation is 50%.

    High: 49 °F⇓

    Chance Rain
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 31.

    Low: 31 °F

    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of rain before 2am. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 39. Southwest wind 3 to 7 mph.
Tuesday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 62. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 41. South wind around 6 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 58. South wind 6 to 11 mph.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 48. South wind around 14 mph.
Thursday
A chance of rain before 2pm, then a chance of rain and snow. Mostly cloudy, with a temperature rising to near 49 by 9am, then falling to around 43 during the remainder of the day. Chance of precipitation is 50%.
Thursday Night
A 30 percent chance of snow before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 31.
Friday
Mostly sunny, with a high near 42.
Friday Night
A 40 percent chance of rain before 2am. Mostly cloudy, with a low around 37.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Sunday Night
Rain likely. Cloudy, with a low around 41. Breezy. Chance of precipitation is 70%.
Monday
Rain likely. Cloudy, with a high near 48. Chance of precipitation is 60%.
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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:
2:19 pm EDT Mar 9, 2026
Forecast Valid:
5pm EDT Mar 9, 2026-6pm EDT Mar 16, 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