GROTON, CT 06340 Weather Forecast & Current Conditions

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GROTON, CT
Current Weather

8:56 AM EDT JUN 15, 2025
Overcast
61°F
Feels Like: 60°F
Dewpoint: 54°F
Rel. Hum.: 78%
Visibility: 10 miles
Wind: ENE at 8 mph
Pressure: 30.18 inches
Last 72 hours

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GROTON, CT 06340
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly cloudy this morning, then becoming partly sunny. Highs in the upper 60s. East winds 5 to 10 mph.
TONIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 50s. East winds around 5 mph.
MONDAY
Mostly cloudy in the morning, then becoming partly sunny. Highs around 70. East winds 5 to 10 mph.
MONDAY NIGHT
Mostly cloudy. Lows in the upper 50s. East winds 5 to 10 mph.
TUESDAY
Partly sunny. Highs in the lower 70s. East winds 5 to 10 mph.
TUESDAY NIGHT
Mostly cloudy. A chance of showers after midnight. Lows in the lower 60s. Chance of rain 30 percent.
WEDNESDAY
Mostly cloudy. A chance of showers in the morning. Highs in the mid 70s. Chance of rain 30 percent.
WEDNESDAY NIGHT
Mostly cloudy. Lows in the mid 60s.
JUNETEENTH
Partly sunny. A chance of showers in the afternoon. Highs in the mid 80s. Chance of rain 40 percent.
THURSDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers. Lows in the mid 60s. Chance of rain 40 percent.
FRIDAY
Mostly sunny. Highs in the lower 80s.
FRIDAY NIGHT
Mostly clear. Lows in the lower 60s.
SATURDAY
Mostly sunny. Highs in the lower 80s.

Visible Weather Satellite
GROTON, CT 06340
Infrared Weather Satellite
GROTON, CT 06340
NEXRAD Weather Radar
GROTON, CT 06340

GROTON, CT 3 hourly weather forecast

weather forecast created  7:00 PM CDT  6/14/2025
Sunday
15 JUN 2025
GROTON, CT 06340 weather forecast Day 1, 0 hours 2 AM 57° 56° Mostly Cloudy 13%
RAIN
<.01 in
0% Thunder
( 0% severe)
NE   7 80% 51°
Low 55° GROTON, CT 06340 weather forecast Day 1, 3 hours 5 AM 56° 54° Mostly Cloudy NE   8 86% 52°
High 66° GROTON, CT 06340 weather forecast Day 1, 6 hours 8 AM 59° 57° Mostly Cloudy 7%

0% Thunder
( 0% severe)
NE   9 80% 53°

Mostly Cloudy



GROTON, CT 06340 weather forecast Day 1, 9 hours 11 AM 62° 61° Mostly Cloudy ENE   9 75% 54°
GROTON, CT 06340 weather forecast Day 1, 12 hours 2 PM 64° 64° Mostly Cloudy 6%

0% Thunder
( 1% severe)
E   8 70% 54°
GROTON, CT 06340 weather forecast Day 1, 15 hours 5 PM 64° 64° Mostly Cloudy E   8 73% 55°
GROTON, CT 06340 weather forecast Day 1, 18 hours 8 PM 61° 61° Partly Cloudy 5%

0% Thunder
( 1% severe)
E   6 78% 54°
GROTON, CT 06340 weather forecast Day 1, 21 hours 11 PM 59° 60° Partly Cloudy E   3 87% 55°
Monday
16 JUN 2025
GROTON, CT 06340 weather forecast Day 2, 0 hours 2 AM 58° 58° Mostly Cloudy 5%

0% Thunder
( 0% severe)
NE   3 90% 55°
Low 56° GROTON, CT 06340 weather forecast Day 2, 3 hours 5 AM 57° 57° Mostly Cloudy NE   5 93% 55°
High 69° GROTON, CT 06340 weather forecast Day 2, 6 hours 8 AM 61° 60° Mostly Cloudy 2%

0% Thunder
( 1% severe)
ENE   7 84% 56°

Mostly Cloudy



GROTON, CT 06340 weather forecast Day 2, 9 hours 11 AM 65° 65° Mostly Cloudy E   9 75% 57°
GROTON, CT 06340 weather forecast Day 2, 12 hours 2 PM 67° 67° Mostly Cloudy 4%

0% Thunder
( 0% severe)
E   10 70% 57°
GROTON, CT 06340 weather forecast Day 2, 15 hours 5 PM 66° 66° Mostly Cloudy ESE   9 73% 57°
GROTON, CT 06340 weather forecast Day 2, 18 hours 8 PM 63° 63° Partly Cloudy 4%

0% Thunder
( 1% severe)
E   6 78% 56°
GROTON, CT 06340 weather forecast Day 2, 21 hours 11 PM 60° 61° Mostly Cloudy E   3 90% 57°

GROTON, CT extended weather forecast

BAD DAY
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Low 56° Low 61° Low 63° Low 67° Low 64°
High 70° High 70° High 78° High 79° High 77°
GROTON, CT 06340 weather forecast Day 3 GROTON, CT 06340 weather forecast Day 4 GROTON, CT 06340 weather forecast Day 5 GROTON, CT 06340 weather forecast Day 6 GROTON, CT 06340 weather forecast Day 7
Mostly Cloudy
10% Rain
Overcast
44% Rain
Overcast
33% Rain
Mostly Cloudy
35% Rain
Overcast
47% Rain
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