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

58°F

14°C

Humidity 51%
Wind Speed W 10 mph
Barometer 29.71 in (1006.0 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 8 Nov 3:56 pm EST
Extended Forecast for

3 Miles NW Old Mystic CT

  • Tonight

    Tonight: Mostly clear, with a low around 39. West wind 5 to 7 mph.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of rain before 4pm. Mostly sunny, with a high near 58. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 58 °F

    Slight Chance
    Rain

  • Monday Night

    Monday Night: Mostly clear, with a low around 36. Northwest wind 6 to 8 mph.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Patchy frost before 7am. Otherwise, mostly sunny, with a high near 59. West wind 6 to 10 mph.

    High: 59 °F

    Patchy Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 39. West wind around 6 mph.

    Low: 39 °F

    Clear

  • Veterans Day

    Veterans Day: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 56.

    High: 56 °F

    Partly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 70%.

    Low: 37 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 39. West wind 5 to 7 mph.
Monday
A 20 percent chance of rain before 4pm. Mostly sunny, with a high near 58. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 36. Northwest wind 6 to 8 mph.
Tuesday
Patchy frost before 7am. Otherwise, mostly sunny, with a high near 59. West wind 6 to 10 mph.
Tuesday Night
Clear, with a low around 39. West wind around 6 mph.
Veterans Day
Sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 56.
Thursday Night
Rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 70%.
Friday
Rain likely. Mostly cloudy, with a high near 47. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 31.
Saturday
A 30 percent chance of rain. Partly sunny, with a high near 47.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 48.
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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:
1:44 pm EST Nov 8, 2026
Forecast Valid:
4pm EST Nov 8, 2026-6pm EST Nov 15, 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