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.

Overcast

40°F

4°C

Humidity 93%
Wind Speed SE 5 mph
Barometer 30.18 in (1021.8 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 26 Mar 12:56 am EDT
Extended Forecast for

3 Miles SW Ledyard CT

  • Overnight

    Overnight: A 30 percent chance of rain, mainly between 2am and 5am. Cloudy, with a steady temperature around 40. South wind around 6 mph.

    Low: 40 °F

    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 58. Southwest wind 10 to 13 mph, with gusts as high as 24 mph.

    High: 58 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Thursday Night

    Thursday Night: Showers, mainly after 2am. Low around 46. Southwest wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers, mainly before 8am. High near 53. North wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of rain and snow showers before 11pm, then a slight chance of snow showers between 11pm and 2am. Mostly cloudy, with a low around 29. Northeast wind around 6 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly between 2am and 5am. Cloudy, with a steady temperature around 40. South wind around 6 mph.
Thursday
A 20 percent chance of rain before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 58. Southwest wind 10 to 13 mph, with gusts as high as 24 mph.
Thursday Night
Showers, mainly after 2am. Low around 46. Southwest wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers, mainly before 8am. High near 53. North wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A slight chance of rain and snow showers before 11pm, then a slight chance of snow showers between 11pm and 2am. Mostly cloudy, with a low around 29. Northeast wind around 6 mph. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 40.
Saturday Night
Mostly clear, with a low around 25.
Sunday
Sunny, with a high near 45.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly cloudy, with a high near 51.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
Mostly cloudy, with a high near 54.
Tuesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 37.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Ledyard CT
 41.42°N 72.03°W (Elev. 233 ft)
Last Update:
11:15 pm EDT Mar 25, 2026
Forecast Valid:
1am EDT Mar 26, 2026-6pm EDT Apr 1, 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