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

56°F

13°C

Humidity 97%
Wind Speed W 6 mph
Barometer 30.21 in (1022.9 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 3 Oct 11:56 pm EDT
Extended Forecast for

Preston CT

  • Overnight

    Overnight: Patchy fog after 4am. Otherwise, clear, with a low around 44. Southwest wind 3 to 5 mph.

    Low: 44 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, sunny, with a high near 81. Calm wind becoming west around 6 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Areas of fog after 2am. Otherwise, mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear
    then Areas
    Fog

  • Sunday

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

    High: 83 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.

    Low: 58 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, clear, with a low around 44. Southwest wind 3 to 5 mph.
Saturday
Patchy fog before 10am. Otherwise, sunny, with a high near 81. Calm wind becoming west around 6 mph in the afternoon.
Saturday Night
Areas of fog after 2am. Otherwise, mostly clear, with a low around 53. Calm wind.
Sunday
Patchy fog before 9am. Otherwise, sunny, with a high near 83. Calm wind becoming south around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 53. Calm wind.
Monday
Sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Wednesday
Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 43.
Thursday
Sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 40.
Friday
Sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Preston CT
 41.53°N 72.01°W (Elev. 200 ft)
Last Update:
2:14 pm EDT Oct 3, 2025
Forecast Valid:
12am EDT Oct 4, 2025-6pm EDT Oct 10, 2025
 
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