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

41°F

5°C

Humidity 86%
Wind Speed NE 14 mph
Barometer 30.49 in (1032.4 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 2 Apr 10:56 am EDT
Extended Forecast for

3 Miles NW Old Mystic CT

  • Today

    Today: Light rain likely, mainly before 1pm. Mostly cloudy, with a high near 42. Northeast wind around 15 mph. Chance of precipitation is 60%.

    High: 42 °F

    Light Rain
    Likely

  • Tonight

    Tonight: A slight chance of drizzle before 8pm, then a chance of drizzle or light rain, mainly after 2am. Patchy fog. Otherwise, cloudy, with a low around 37. Northeast wind 6 to 10 mph. Chance of precipitation is 30%.

    Low: 37 °F

    Chance Light
    Rain and
    Patchy Fog

  • Friday

    Friday: A chance of drizzle or light rain, mainly before 11am. Areas of fog before 2pm. Otherwise, mostly cloudy, with a high near 55. Southeast wind 3 to 7 mph. Chance of precipitation is 30%.

    High: 55 °F

    Chance Light
    Rain and
    Areas Fog

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50. Southeast wind 7 to 9 mph becoming southwest after midnight.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after 2pm. Partly sunny, with a high near 64. Northwest wind 5 to 10 mph becoming east in the afternoon.

    High: 64 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 57. Chance of precipitation is 90%.

    High: 57 °F

    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

Detailed Forecast

Today
Light rain likely, mainly before 1pm. Mostly cloudy, with a high near 42. Northeast wind around 15 mph. Chance of precipitation is 60%.
Tonight
A slight chance of drizzle before 8pm, then a chance of drizzle or light rain, mainly after 2am. Patchy fog. Otherwise, cloudy, with a low around 37. Northeast wind 6 to 10 mph. Chance of precipitation is 30%.
Friday
A chance of drizzle or light rain, mainly before 11am. Areas of fog before 2pm. Otherwise, mostly cloudy, with a high near 55. Southeast wind 3 to 7 mph. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 50. Southeast wind 7 to 9 mph becoming southwest after midnight.
Saturday
A 20 percent chance of showers after 2pm. Partly sunny, with a high near 64. Northwest wind 5 to 10 mph becoming east in the afternoon.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 41.
Sunday
Showers, mainly after 8am. High near 57. Chance of precipitation is 90%.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 34.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 50.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 29.
Wednesday
Sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Old Mystic CT
 41.4°N 72.01°W (Elev. 197 ft)
Last Update:
11:10 am EDT Apr 2, 2026
Forecast Valid:
11am EDT Apr 2, 2026-6pm EDT Apr 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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