Monsoon Flood Threat and Heat Building Out West

The monsoon threat with heavy rain and thunderstorms continues across a large portion of the West. Flash flood watches are in effect from New Mexico to Montana and Idaho and debris flows remain possible near vulnerable burn scars. Also out West, excessive heat watches are in effect and start Tuesday across the Interior Northwest and parts of the Southwest into the desert of southern California. Read More >

Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

A Few Clouds

79°F

26°C

Humidity 47%
Wind Speed W 10 mph
Barometer 29.93 in (1013.6 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 2 Aug 4:56 pm EDT
Extended Forecast for

Old Lyme CT

  • Tonight

    Tonight: Mostly clear, with a low around 60. Northwest wind around 6 mph becoming calm  in the evening.

    Mostly Clear

    Low: 60 °F

  • Tuesday

    Tuesday: Partly sunny, with a high near 79. Calm wind becoming south around 6 mph in the afternoon.

    Partly Sunny

    High: 79 °F

  • Tuesday
    Night

    Tuesday Night: Mostly cloudy, with a low around 63. Calm wind.

    Mostly Cloudy

    Low: 63 °F

  • Wednesday

    Wednesday: A 30 percent chance of showers.  Mostly cloudy, with a high near 76. Calm wind becoming southeast 5 to 7 mph in the morning.

    Chance
    Showers

    High: 76 °F

  • Wednesday
    Night

    Wednesday Night: A 50 percent chance of showers.  Mostly cloudy, with a low around 62. Light northeast wind.

    Chance
    Showers

    Low: 62 °F

  • Thursday

    Thursday: A 50 percent chance of showers.  Mostly cloudy, with a high near 78.

    Chance
    Showers

    High: 78 °F

  • Thursday
    Night

    Thursday Night: A 50 percent chance of showers.  Mostly cloudy, with a low around 64.

    Chance
    Showers

    Low: 64 °F

  • Friday

    Friday: A 30 percent chance of showers before 2pm.  Mostly sunny, with a high near 83.

    Chance
    Showers

    High: 83 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 66.

    Partly Cloudy

    Low: 66 °F

Detailed Forecast

Tonight
Mostly clear, with a low around 60. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 79. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 63. Calm wind.
Wednesday
A 30 percent chance of showers. Mostly cloudy, with a high near 76. Calm wind becoming southeast 5 to 7 mph in the morning.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 62. Light northeast wind.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 78.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 64.
Friday
A 30 percent chance of showers before 2pm. Mostly sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 66.
Saturday
Partly sunny, with a high near 82.
Saturday Night
Mostly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 69.
Monday
Mostly sunny, with a high near 85.
Click Map For Forecast
Point Forecast:
Old Lyme CT
 41.31°N 72.33°W (Elev. 43 ft)
3:15 pm EDT Aug 2, 2021
6pm EDT Aug 2, 2021-6pm EDT Aug 9, 2021
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database