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.

Fog

47°F

8°C

Humidity 97%
Wind Speed S 3 mph
Barometer 29.52 in (999.7 mb)
Dewpoint 46°F (8°C)
Visibility 0.25 mi
Last update 12 Mar 5:56 am EDT
Extended Forecast for

3 Miles ENE East Haddam CT

  • Today

    Today: Rain likely before 3pm, then snow, possibly mixed with rain. Patchy fog before 7am. Temperature falling to around 37 by 5pm. Southwest wind 8 to 17 mph becoming northwest in the morning. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.

    High: 55 °F⇓

    Rain Likely
    and Patchy
    Fog then
    Rain/Snow

  • Tonight

    Tonight: Snow, mainly before 8pm. Low around 27. Northwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Snow then
    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 41. Wind chill values between 20 and 30. West wind 5 to 11 mph becoming south in the afternoon. Winds could gust as high as 23 mph.

    High: 41 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A slight chance of snow before 11pm, then a slight chance of rain between 11pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a steady temperature around 39. South wind 11 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    Low: 39 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 48. West wind 13 to 15 mph, with gusts as high as 29 mph.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 29.

    Low: 29 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 45.

    High: 45 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain, mainly after 2am. Low around 38. Chance of precipitation is 80%.

    Low: 38 °F

    Chance Rain
    then Rain

  • Monday

    Monday: Rain. High near 57. Chance of precipitation is 90%.

    High: 57 °F

    Rain

Detailed Forecast

Today
Rain likely before 3pm, then snow, possibly mixed with rain. Patchy fog before 7am. Temperature falling to around 37 by 5pm. Southwest wind 8 to 17 mph becoming northwest in the morning. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, mainly before 8pm. Low around 27. Northwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday
Increasing clouds, with a high near 41. Wind chill values between 20 and 30. West wind 5 to 11 mph becoming south in the afternoon. Winds could gust as high as 23 mph.
Friday Night
A slight chance of snow before 11pm, then a slight chance of rain between 11pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a steady temperature around 39. South wind 11 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 48. West wind 13 to 15 mph, with gusts as high as 29 mph.
Saturday Night
Increasing clouds, with a low around 29.
Sunday
Mostly cloudy, with a high near 45.
Sunday Night
Rain, mainly after 2am. Low around 38. Chance of precipitation is 80%.
Monday
Rain. High near 57. Chance of precipitation is 90%.
Monday Night
Rain likely, mainly before 2am. Cloudy, with a low around 33. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of rain. Mostly sunny, with a high near 41.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Mostly sunny, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE East Haddam CT
 41.47°N 72.41°W (Elev. 554 ft)
Last Update:
6:12 am EDT Mar 12, 2026
Forecast Valid:
6am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
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