OLD LYME, CT 06371 Weather Forecast & Current Conditions

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GROTON, CT
Current Weather

7:56 AM EDT JUL 22, 2025
Scattered Clouds
66°F
Feels Like: 66°F
Dewpoint: 55°F
Rel. Hum.: 68%
Visibility: 10 miles
Wind: NNE at 8 mph
Pressure: 30.13 inches
Last 72 hours

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OLD LYME, CT 06371
Weather Forecast

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Snow Depth pages
OVERNIGHT
Partly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.
TUESDAY
Sunny. Highs in the upper 70s. Northeast winds around 5 mph, becoming southeast in the afternoon.
TUESDAY NIGHT
Clear. Lows in the lower 60s. South winds around 5 mph in the evening, becoming light and variable.
WEDNESDAY
Sunny. Highs in the lower 80s. South winds 5 to 10 mph.
WEDNESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 60s. Southwest winds 5 to 10 mph.
THURSDAY
Sunny. Highs in the mid 80s.
THURSDAY NIGHT
Mostly clear. Lows in the lower 70s.
FRIDAY
Sunny. Highs in the upper 80s. Heat index values in the upper 90s.
FRIDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 70s.
SATURDAY
Partly sunny. A chance of showers in the afternoon. Highs in the mid 80s. Chance of rain 30 percent. Heat index values in the mid 90s.
SATURDAY NIGHT
Mostly cloudy. A chance of showers. Lows in the upper 60s. Chance of rain 40 percent.
SUNDAY
Partly sunny. A chance of showers. Highs in the lower 80s. Chance of rain 40 percent.
SUNDAY NIGHT
Mostly cloudy with a chance of showers in the evening, then partly cloudy with a chance of showers after midnight. Lows in the upper 60s. Chance of rain 40 percent.

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  7/21/2025
Tuesday
22 JUL 2025
OLD LYME, CT 06371 weather forecast Day 1, 0 hours 2 AM 65° 65° Partly Cloudy 1%

0% Thunder
( 0% severe)
NNE   5 65% 53°
Low 60° OLD LYME, CT 06371 weather forecast Day 1, 3 hours 5 AM 61° 61° Partly Cloudy NNE   5 70% 51°
High 75° OLD LYME, CT 06371 weather forecast Day 1, 6 hours 8 AM 66° 66° Partly Cloudy 0%

0% Thunder
( 0% severe)
NE   6 65% 54°

Clear



OLD LYME, CT 06371 weather forecast Day 1, 9 hours 11 AM 72° 72° Clear E   5 55% 55°
OLD LYME, CT 06371 weather forecast Day 1, 12 hours 2 PM 74° 74° Clear 0%

0% Thunder
( 1% severe)
SSE   6 55% 57°
OLD LYME, CT 06371 weather forecast Day 1, 15 hours 5 PM 74° 74° Clear S   6 59% 59°
OLD LYME, CT 06371 weather forecast Day 1, 18 hours 8 PM 70° 70° Clear 0%

0% Thunder
( 0% severe)
S   5 71% 60°
OLD LYME, CT 06371 weather forecast Day 1, 21 hours 11 PM 67° 67° Clear S   2 81% 61°
Wednesday
23 JUL 2025
OLD LYME, CT 06371 weather forecast Day 2, 0 hours 2 AM 65° 65° Clear 0%

0% Thunder
( 0% severe)
S   1 84% 60°
Low 62° OLD LYME, CT 06371 weather forecast Day 2, 3 hours 5 AM 63° 64° Clear   CALM 90% 60°
High 78° OLD LYME, CT 06371 weather forecast Day 2, 6 hours 8 AM 70° 70° Partly Cloudy 0%

0% Thunder
( 1% severe)
N   1 81% 64°

Partly Cloudy



OLD LYME, CT 06371 weather forecast Day 2, 9 hours 11 AM 74° 74° Partly Cloudy S   5 71% 64°
OLD LYME, CT 06371 weather forecast Day 2, 12 hours 2 PM 77° 79° Partly Cloudy 0%

0% Thunder
( 1% severe)
S   9 64% 64°
OLD LYME, CT 06371 weather forecast Day 2, 15 hours 5 PM 76° 78° Clear SSW   10 66% 64°
OLD LYME, CT 06371 weather forecast Day 2, 18 hours 8 PM 72° 72° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSW   8 73% 63°
OLD LYME, CT 06371 weather forecast Day 2, 21 hours 11 PM 70° 70° Partly Cloudy SSW   6 81% 64°

GROTON, CT extended weather forecast

BAD DAY
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Low 61° Low 69° Low 70° Low 71° Low 68°
High 77° High 81° High 87° High 84° 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
Partly Cloudy
9% Rain
Mostly Cloudy
17% Rain
Partly Cloudy
25% Rain
Partly Cloudy
28% Rain
Mostly Cloudy
23% Rain
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