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.

Fog

40°F

4°C

Humidity 100%
Wind Speed S 3 mph
Barometer 29.89 in (1012.0 mb)
Dewpoint 40°F (4°C)
Visibility 0.25 mi
Last update 8 Mar 9:56 pm EDT
Extended Forecast for

3 Miles ENE East Haddam CT

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 38. Light west wind.

    Low: 38 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 7am. Otherwise, sunny, with a high near 62. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 62 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38. South wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 41. Southwest wind around 6 mph becoming calm in the evening.

    Low: 41 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after 2am. Cloudy, with a low around 45.

    Low: 45 °F

    Cloudy then
    Chance
    Showers

  • Thursday

    Thursday: Rain showers likely before 2pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.

    High: 55 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow showers before 8pm. Partly cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Chance
    Rain/Snow
    then Partly
    Cloudy

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 38. Light west wind.
Monday
Patchy fog before 7am. Otherwise, sunny, with a high near 62. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Monday Night
Mostly clear, with a low around 38. South wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 67. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 41. Southwest wind around 6 mph becoming calm in the evening.
Wednesday
Mostly cloudy, with a high near 57.
Wednesday Night
A 40 percent chance of showers after 2am. Cloudy, with a low around 45.
Thursday
Rain showers likely before 2pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow showers before 8pm. Partly cloudy, with a low around 28. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 44.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 35.
Saturday
Partly sunny, with a high near 47.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
A 30 percent chance of rain. Mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE East Haddam CT
 41.47°N 72.41°W (Elev. 554 ft)
Last Update:
9:30 pm EDT Mar 8, 2026
Forecast Valid:
10pm EDT Mar 8, 2026-6pm EDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation