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

43°F

6°C

Humidity 93%
Wind Speed E 21 G 32 mph
Barometer 29.99 in (1015.4 mb)
Dewpoint 41°F (5°C)
Visibility 6.00 mi
Wind Chill34°F (1°C)
Last update 16 Mar 4:56 am EDT
Extended Forecast for

Old Saybrook Center CT

Flood Watch until March 17, 08:00am
Wind Advisory March 16, 02:00pm until March 17, 04:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch until March 17, 08:00am

    NOW until 8:00am Tue

    Flood Watch

  • Overnight

    Low: 44 °F

    Showers and
    Areas Fog

  • Monday

    Monday: Showers and possibly a thunderstorm. Areas of fog. High near 55. Breezy, with a south wind 22 to 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 55 °F

    Showers and
    Areas Fog

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Areas of fog before 2am. Low around 38. Windy, with a south wind 29 to 34 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Showers and
    Areas Fog

  • Tuesday

    Tuesday: Sunny, with a temperature falling to around 38 by 9am. Breezy, with a west wind 17 to 20 mph.

    High: 41 °F⇓

    Sunny and
    Breezy then
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 26. West wind 11 to 15 mph.

    Low: 26 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Areas of fog. Steady temperature around 44. Breezy, with a southeast wind around 23 mph. Chance of precipitation is 100%.
Monday
Showers and possibly a thunderstorm. Areas of fog. High near 55. Breezy, with a south wind 22 to 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Areas of fog before 2am. Low around 38. Windy, with a south wind 29 to 34 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Sunny, with a temperature falling to around 38 by 9am. Breezy, with a west wind 17 to 20 mph.
Tuesday Night
Partly cloudy, with a low around 26. West wind 11 to 15 mph.
Wednesday
Mostly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
Mostly sunny, with a high near 41.
Thursday Night
Partly cloudy, with a low around 34.
Friday
Mostly sunny, with a high near 48.
Friday Night
Mostly cloudy, with a low around 34.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 44. Chance of precipitation is 40%.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 34.
Sunday
A chance of rain and snow. Partly sunny, with a high near 42. Chance of precipitation is 30%.
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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:
2:29 am EDT Mar 16, 2026
Forecast Valid:
5am EDT Mar 16, 2026-6pm EDT Mar 22, 2026
 
Forecast Discussion
 
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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