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

50°F

10°C

Humidity 93%
Wind Speed Calm
Barometer 29.85 in (1010.6 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 8 Nov 6:56 pm EST
Extended Forecast for

Old Saybrook Center CT

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. North wind 5 to 9 mph becoming east after midnight.

    Low: 46 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain, mainly after 1pm. High near 58. Southeast wind 9 to 16 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain with drizzle likely before 7pm, then drizzle or light rain likely between 7pm and 10pm, then showers likely after 10pm. Patchy fog before 10pm. Steady temperature around 55. East wind 7 to 14 mph becoming southwest after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Rain and
    Patchy Fog

  • Monday

    Monday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 58. West wind 7 to 13 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 30. West wind around 15 mph.

    Low: 30 °F

    Slight Chance
    Showers

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 43. Breezy.

    High: 43 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37. Breezy.

    Low: 37 °F

    Partly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Partly sunny, with a high near 50. Breezy.

    High: 50 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 46. North wind 5 to 9 mph becoming east after midnight.
Sunday
Rain, mainly after 1pm. High near 58. Southeast wind 9 to 16 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain with drizzle likely before 7pm, then drizzle or light rain likely between 7pm and 10pm, then showers likely after 10pm. Patchy fog before 10pm. Steady temperature around 55. East wind 7 to 14 mph becoming southwest after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 58. West wind 7 to 13 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 30. West wind around 15 mph.
Veterans Day
Partly sunny, with a high near 43. Breezy.
Tuesday Night
Partly cloudy, with a low around 37. Breezy.
Wednesday
Partly sunny, with a high near 50. Breezy.
Wednesday Night
Mostly cloudy, with a low around 42.
Thursday
Mostly sunny, with a high near 50. Breezy.
Thursday Night
Mostly clear, with a low around 38.
Friday
Mostly sunny, with a high near 48.
Friday Night
Partly cloudy, with a low around 36.
Saturday
Mostly sunny, with a high near 47.
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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:
5:22 pm EST Nov 8, 2025
Forecast Valid:
7pm EST Nov 8, 2025-6pm EST Nov 15, 2025
 
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Additional Resources

Radar & Satellite Image

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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