South Lyme, Connecticut Weather
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Weather Forecast for South Lyme, Connecticut : New London County
Issued: 11:16 am EDT Jun 2, 2025 Latitude: 41.3053753 Longitude: -72.2584131 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Mostly Sunny on This Afternoon Cloudy on Tonight Sunny on Tuesday Sunny on Wednesday Sunny on Thursday 30% chance of on Friday 60% chance of rain on Saturday Mostly Sunny on Sunday
High: 68°F Low: 51°F High: 74°F High: 78°F High: 81°F High: 78°F High: 75°F High: 74°F
Low: 55°F Low: 60°F Low: 63°F Low: 62°F Low: 60°F  
Mostly Sunny Cloudy Sunny Sunny Sunny Partly Sunny Rain Mostly Sunny
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Current Conditions at
GROTON - (KGON)
64°
Partly Cloudy
as of 1:56 PM EDST
Rel. Humidity: 59%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 24 MPH
240° Southwest
Cloud Level(s): Scattered at 4900ft
Current Conditions at
MONTAUK - (KMTP)
70°
Partly Cloudy
as of 1:54 PM EDST
Rel. Humidity: 43%
Dew Point: 46°F
Pressure: 29.99 in.
Wind Data
8 MPH
270° West
Current Conditions at
WESTERLY STATE ARPT - (KWST)
64°
Mostly Clear
as of 1:53 PM EDST
Rel. Humidity: 48%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 20 MPH
230° Southwest
Cloud Level(s): Few at 5000ft
Current Conditions at
WILLIMANTIC - (KIJD)
66°
Mostly Cloudy
as of 1:52 PM EDST
Rel. Humidity: 45%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
5 MPH
Cloud Level(s): Broken at 5500ft
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 68. Southwest wind around 9 mph.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 51. Southwest wind around 5 mph becoming calm in the evening.
Sunny on Tuesday Tuesday... Sunny, with a high near 74. Calm wind becoming southwest around 6 mph in the afternoon.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 55. Light southwest wind.
Sunny on Wednesday Wednesday... Sunny, with a high near 78. Calm wind becoming south 5 to 8 mph in the morning.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 60.
Sunny on Thursday Thursday... Sunny, with a high near 81.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 63.
30% chance of Friday Friday... A 30 percent chance of showers after 2pm. Partly sunny, with a high near 78.
50% chance of rain Friday Night Friday Night... A 50 percent chance of showers. Mostly cloudy, with a low around 62.
60% chance of rain Saturday Saturday... Showers likely. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.
60% chance of rain Saturday Night Saturday Night... Showers likely. Partly cloudy, with a low around 60. Chance of precipitation is 60%.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 74.
Current Radar Image


Sun Almanac for South Lyme, Connecticut
Sunrise: 05:18 AM
Sunset: 8:17 PM
Civil Sunrise:04:44 AM
Civil Sunset: 8:50 PM
Nautical Sunrise: 04:02 AM
Nautical Sunset: 9:32 PM
Astro Sunrise: 03:13 AM
Astro Sunset: 10:21 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.