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.

Fair

62°F

17°C

Humidity 96%
Wind Speed Calm
Barometer 30.11 in (1019.6 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 5 Aug 12:56 am EDT
Extended Forecast for

2 Miles SSE Yantic CT

  • Overnight

    Overnight: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 83. Calm wind becoming south around 6 mph in the afternoon.

    High: 83 °F

    Areas Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly after 2am. Patchy fog before 4am, then patchy fog after 5am. Otherwise, increasing clouds, with a low around 68. Calm wind.

    Low: 68 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A 30 percent chance of showers before 8am. Patchy fog between 7am and 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 87. Heat index values as high as 96. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 87 °F

    Chance
    Showers and
    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 88.

    High: 88 °F

    Sunny then
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 58. Calm wind.
Wednesday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 83. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers, mainly after 2am. Patchy fog before 4am, then patchy fog after 5am. Otherwise, increasing clouds, with a low around 68. Calm wind.
Thursday
A 30 percent chance of showers before 8am. Patchy fog between 7am and 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 87. Heat index values as high as 96. Calm wind becoming southwest 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.
Friday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 88.
Friday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 71.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 68.
Monday
Sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Yantic CT
 41.51°N 72.01°W (Elev. 200 ft)
Last Update:
4:10 pm EDT Aug 4, 2026
Forecast Valid:
1am EDT Aug 5, 2026-6pm EDT Aug 11, 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