National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Light Rain Fog/Mist and Breezy

54°F

12°C

Humidity 100%
Wind Speed NE 25 G 40 mph
Barometer 29.97 in (1015.0 mb)
Dewpoint 54°F (12°C)
Visibility 2.00 mi
Wind Chill48°F (9°C)
Last update 13 Oct 9:56 am EDT
Extended Forecast for

Old Saybrook Center CT

Coastal Flood Advisory October 13, 10:47am until October 13, 08:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory October 13, 10:47am until October 13, 08:00pm

    NOW until 8:00pm Mon

    Coastal Flood Advisory

  • Columbus Day

    High: 59 °F

    Rain and
    Breezy

  • Tonight

    Tonight: Rain likely. Cloudy, with a low around 56. Breezy, with a northeast wind 21 to 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 56 °F

    Rain Likely
    and Breezy

  • Tuesday

    Tuesday: A 40 percent chance of rain. Mostly cloudy, with a steady temperature around 58. North wind 16 to 18 mph.

    High: 58 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before 2am. Mostly cloudy, with a low around 53. North wind 9 to 13 mph.

    Low: 53 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63. North wind 10 to 15 mph.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Columbus Day
Rain. High near 59. Breezy, with a northeast wind around 25 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain likely. Cloudy, with a low around 56. Breezy, with a northeast wind 21 to 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a steady temperature around 58. North wind 16 to 18 mph.
Tuesday Night
A 20 percent chance of rain before 2am. Mostly cloudy, with a low around 53. North wind 9 to 13 mph.
Wednesday
Mostly sunny, with a high near 63. North wind 10 to 15 mph.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 58.
Friday Night
Mostly clear, with a low around 46.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 67.
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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:
9:09 am EDT Oct 13, 2025
Forecast Valid:
10am EDT Oct 13, 2025-6pm EDT Oct 19, 2025
 
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