National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tennessee Valley Flooding; California Fire Weather; Strong Cold Front

Heavy rain from the remnants of Nicholas will continue a threat for additional flooding and flash flooding across the Tennessee Valley Monday. Critical fire weather conditions are forecast for portions of interior California Monday. A strong cold front will slowly shift across the central then eastern U.S. through this week bringing a threat for heavy rainfall and potential for flooding. Read More >

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

55°F

13°C

Humidity 100%
Wind Speed N 3 mph
Barometer 30.26 in (1024.5 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 20 Sep 1:56 am EDT
Extended Forecast for

3 Miles ESE South Lyme CT

  • Overnight

    Overnight: Clear, with a low around 54. Calm wind.

    Clear

    Low: 54 °F

  • Monday

    Monday: Sunny, with a high near 73. Southeast wind 3 to 8 mph.

    Sunny

    High: 73 °F

  • Monday
    Night

    Monday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 59. Southeast wind around 6 mph.

    Clear then
    Patchy Fog

    Low: 59 °F

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 74. Southeast wind 6 to 10 mph.

    Patchy Fog
    then Mostly
    Sunny

    High: 74 °F

  • Tuesday
    Night

    Tuesday Night: Mostly cloudy, with a low around 64. Southeast wind around 6 mph.

    Mostly Cloudy

    Low: 64 °F

  • Wednesday

    Wednesday: Partly sunny, with a high near 77.

    Partly Sunny

    High: 77 °F

  • Wednesday
    Night

    Wednesday Night: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 68.

    Mostly Cloudy
    then Chance
    Showers

    Low: 68 °F

  • Thursday

    Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 77.

    Chance
    Showers

    High: 77 °F

  • Thursday
    Night

    Thursday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 64.

    Chance
    Showers

    Low: 64 °F

Detailed Forecast

Overnight
Clear, with a low around 54. Calm wind.
Monday
Sunny, with a high near 73. Southeast wind 3 to 8 mph.
Monday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 59. Southeast wind around 6 mph.
Tuesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 74. Southeast wind 6 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 64. Southeast wind around 6 mph.
Wednesday
Partly sunny, with a high near 77.
Wednesday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 68.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 77.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 64.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
Mostly sunny, with a high near 74.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
3 Miles ESE South Lyme CT
 41.3°N 72.27°W (Elev. 75 ft)
Last Update:
2:03 am EDT Sep 20, 2021
Forecast Valid:
2am EDT Sep 20, 2021-6pm EDT Sep 26, 2021
 
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