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.

A Few Clouds

68°F

20°C

Humidity 73%
Wind Speed NA
Barometer 30.37 in (1028.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 16 Sep 10:56 am EDT
Extended Forecast for

2 Miles ESE East Haddam CT

  • Today

    Today: Mostly sunny, with a high near 74. Southwest wind around 6 mph.

    High: 74 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 79. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 79 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers, mainly before 2am. Mostly cloudy, with a low around 65. South wind 3 to 5 mph.

    Low: 65 °F

    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 77. Northwest wind 7 to 9 mph, with gusts as high as 20 mph.

    High: 77 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 8am. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.

    High: 67 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 74. Southwest wind around 6 mph.
Tonight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 60. Calm wind.
Thursday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 79. Calm wind becoming south 5 to 7 mph in the afternoon.
Thursday Night
A 40 percent chance of showers, mainly before 2am. Mostly cloudy, with a low around 65. South wind 3 to 5 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 77. Northwest wind 7 to 9 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 52.
Sunday
Showers likely, mainly after 8am. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 53.
Monday
A 30 percent chance of showers. Mostly cloudy, with a high near 69.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 53.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE East Haddam CT
 41.45°N 72.41°W (Elev. 387 ft)
Last Update:
1:56 am EDT Sep 16, 2026
Forecast Valid:
11am EDT Sep 16, 2026-6pm EDT Sep 22, 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