OLD LYME, CT 06371 Weather Forecast & Current Conditions

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GROTON, CT
Current Weather

7:56 PM EDT JUN 30, 2025
Clear
Mist
72°F
Feels Like: 72°F
Dewpoint: 72°F
Rel. Hum.: 100%
Visibility: 6 miles
Wind: SSE at 6 mph
Pressure: 29.93 inches
Last 72 hours

Local Area Snow Depth

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OLD LYME, CT 06371
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Cloudy. Patchy fog. A chance of showers with a slight chance of thunderstorms after midnight. Near steady temperature around 70. South winds around 5 mph. Chance of rain 50 percent.
TUESDAY
Cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent.
TUESDAY NIGHT
Mostly cloudy with a chance of showers and thunderstorms. Humid with lows in the upper 60s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the evening. Chance of rain 50 percent.
WEDNESDAY
Mostly cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Humid with highs in the lower 80s. Southwest winds 5 to 10 mph. Chance of rain 40 percent.
WEDNESDAY NIGHT
Partly cloudy in the evening, then clearing. Lows in the mid 60s. West winds around 5 mph.
THURSDAY
Sunny. Highs in the mid 80s.
THURSDAY NIGHT
Partly cloudy in the evening, then clearing. Lows in the lower 60s.
INDEPENDENCE DAY
Sunny. Highs in the lower 80s.
FRIDAY NIGHT
Mostly clear. Lows in the lower 60s.
SATURDAY
Mostly sunny. Highs in the lower 80s.
SATURDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 60s.
SUNDAY
Partly sunny. Highs in the mid 80s.
SUNDAY NIGHT
Mostly cloudy. Lows around 70.

Visible Weather Satellite
OLD LYME, CT 06371
Infrared Weather Satellite
OLD LYME, CT 06371
NEXRAD Weather Radar
OLD LYME, CT 06371

GROTON, CT 3 hourly weather forecast

weather forecast created  7:00 PM CDT  6/30/2025
Tuesday
1 JUL 2025
OLD LYME, CT 06371 weather forecast Day 1, 0 hours 2 AM 70° 70° Mostly Cloudy 50%
RAIN
***
0% Thunder
( 23% severe)
SSW   5 100% 70°
Low 69° OLD LYME, CT 06371 weather forecast Day 1, 3 hours 5 AM 70° 70° Mostly Cloudy SSW   6 100% 70°
High 82° OLD LYME, CT 06371 weather forecast Day 1, 6 hours 8 AM 72° 72° Mostly Cloudy 23%
RAIN
.5–1 in
0% Thunder
( 19% severe)
S   8 100% 72°

Mostly Cloudy

Chance of Rain

OLD LYME, CT 06371 weather forecast Day 1, 9 hours 11 AM 75° 75° Mostly Cloudy SSW   13 97% 74°
OLD LYME, CT 06371 weather forecast Day 1, 12 hours 2 PM 80° 85° Partly Cloudy 39%
RAIN
.1–.25 in
0% Thunder
( 37% severe)
SW   15 82% 74°
OLD LYME, CT 06371 weather forecast Day 1, 15 hours 5 PM 79° 82° Mostly Cloudy SSW   14 82% 73°
OLD LYME, CT 06371 weather forecast Day 1, 18 hours 8 PM 76° 77° Mostly Cloudy 44%
RAIN
.5–1 in
0% Thunder
( 31% severe)
SW   10 85% 71°
OLD LYME, CT 06371 weather forecast Day 1, 21 hours 11 PM 73° 73° Mostly Cloudy WSW   7 93% 71°
Wednesday
2 JUL 2025
OLD LYME, CT 06371 weather forecast Day 2, 0 hours 2 AM 72° 72° Mostly Cloudy 48%
RAIN
***
0% Thunder
( 19% severe)
WSW   5 93% 70°
Low 69° OLD LYME, CT 06371 weather forecast Day 2, 3 hours 5 AM 70° 70° Mostly Cloudy WSW   3 100% 70°
High 79° OLD LYME, CT 06371 weather forecast Day 2, 6 hours 8 AM 72° 72° Mostly Cloudy 18%
RAIN
.01–.1 in
0% Thunder
( 13% severe)
WSW   3 97% 71°

Mostly Cloudy



OLD LYME, CT 06371 weather forecast Day 2, 9 hours 11 AM 74° 74° Mostly Cloudy WSW   6 90% 71°
OLD LYME, CT 06371 weather forecast Day 2, 12 hours 2 PM 78° 80° Mostly Cloudy 8%

0% Thunder
( 13% severe)
SW   8 79% 71°
OLD LYME, CT 06371 weather forecast Day 2, 15 hours 5 PM 76° 77° Mostly Cloudy SSW   8 82% 70°
OLD LYME, CT 06371 weather forecast Day 2, 18 hours 8 PM 73° 73° Mostly Cloudy 4%

0% Thunder
( 6% severe)
SW   6 84% 68°
OLD LYME, CT 06371 weather forecast Day 2, 21 hours 11 PM 69° 69° Mostly Cloudy SW   3 97% 68°

GROTON, CT extended weather forecast

BAD DAY
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Low 68° Low 63° Low 64° Low 61° Low 64°
High 82° High 80° High 82° High 79° High 81°
OLD LYME, CT 06371 weather forecast Day 3 OLD LYME, CT 06371 weather forecast Day 4 OLD LYME, CT 06371 weather forecast Day 5 OLD LYME, CT 06371 weather forecast Day 6 OLD LYME, CT 06371 weather forecast Day 7
Mostly Cloudy
54% Rain
Partly Cloudy
20% Rain
Partly Cloudy
19% Rain
Clear
8% Rain
Partly Cloudy
17% Rain
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