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.

Rain Fog/Mist

56°F

13°C

Humidity 97%
Wind Speed E 10 mph
Barometer 30.19 in (1022.4 mb)
Dewpoint 55°F (13°C)
Visibility 3.00 mi
Last update 11 Oct 3:56 pm EDT
Extended Forecast for

Old Saybrook Center CT

  • This Afternoon

    This Afternoon: Rain. High near 62. East wind 11 to 13 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 62 °F

    Rain

  • Tonight

    Tonight: Rain, mainly before 2am. Low around 53. Breezy, with an east wind 15 to 20 mph becoming north after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 53 °F

    Rain and
    Breezy then
    Rain Likely

  • Columbus Day

    Columbus Day: Mostly cloudy through mid morning, then gradual clearing, with a high near 71. North wind 6 to 13 mph.

    High: 71 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 54. Northwest wind 3 to 5 mph.

    Low: 54 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 68. East wind 6 to 9 mph becoming south in the afternoon.

    High: 68 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Rain. High near 62. East wind 11 to 13 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain, mainly before 2am. Low around 53. Breezy, with an east wind 15 to 20 mph becoming north after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Columbus Day
Mostly cloudy through mid morning, then gradual clearing, with a high near 71. North wind 6 to 13 mph.
Monday Night
Increasing clouds, with a low around 54. Northwest wind 3 to 5 mph.
Tuesday
Partly sunny, with a high near 68. East wind 6 to 9 mph becoming south in the afternoon.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Showers likely. Partly sunny, with a high near 66. Chance of precipitation is 60%.
Friday Night
Showers likely. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 57. Breezy.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Mostly sunny, with a high near 54.
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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:
3:33 pm EDT Oct 11, 2026
Forecast Valid:
4pm EDT Oct 11, 2026-6pm EDT Oct 18, 2026
 
Forecast Discussion
 
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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