GROTON, CT 06340 Weather Forecast & Current Conditions

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GROTON, CT
Current Weather

12:56 AM EDT SEP 8, 2025
Overcast
57°F
Feels Like: 55°F
Dewpoint: 55°F
Rel. Hum.: 93%
Visibility: 10 miles
Wind: NNW at 8 mph
Pressure: 30.16 inches
Last 72 hours

Local Area Snow Depth

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GROTON, CT 06340
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly cloudy with a 20 percent chance of showers. Lows in the lower 50s. Northwest winds 5 to 10 mph.
MONDAY
Mostly sunny. Highs in the lower 70s. North winds 5 to 10 mph.
MONDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 50s. Northeast winds around 5 mph.
TUESDAY
Sunny. Highs in the mid 70s. Northeast winds 5 to 10 mph. Gusts up to 20 mph in the afternoon.
TUESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 50s. Northeast winds 5 to 10 mph. Gusts up to 20 mph in the evening.
WEDNESDAY
Mostly cloudy. Highs in the lower 70s.
WEDNESDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 50s.
THURSDAY
Sunny. Highs in the upper 70s.
THURSDAY NIGHT
Mostly clear. Lows in the mid 50s.
FRIDAY
Sunny. Highs in the lower 70s.
FRIDAY NIGHT
Mostly clear. Lows in the lower 50s.
SATURDAY
Sunny. Highs in the lower 70s.
SATURDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s.

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  9/ 7/2025
Monday
8 SEP 2025
GROTON, CT 06340 weather forecast Day 1, 0 hours 2 AM 56° 54° Mostly Cloudy 1%

0% Thunder
( 0% severe)
NNW   8 83% 51°
Low 52° GROTON, CT 06340 weather forecast Day 1, 3 hours 5 AM 53° 50° Partly Cloudy NNW   8 83% 48°
High 72° GROTON, CT 06340 weather forecast Day 1, 6 hours 8 AM 56° 54° Partly Cloudy 0%

0% Thunder
( 0% severe)
N   9 80% 50°

Partly Cloudy



GROTON, CT 06340 weather forecast Day 1, 9 hours 11 AM 66° 66° Partly Cloudy N   9 56% 50°
GROTON, CT 06340 weather forecast Day 1, 12 hours 2 PM 71° 71° Partly Cloudy 0%

0% Thunder
( 0% severe)
N   6 47% 50°
GROTON, CT 06340 weather forecast Day 1, 15 hours 5 PM 68° 68° Mostly Cloudy S   5 54% 51°
GROTON, CT 06340 weather forecast Day 1, 18 hours 8 PM 62° 63° Partly Cloudy 0%

0% Thunder
( 0% severe)
E   2 70% 52°
GROTON, CT 06340 weather forecast Day 1, 21 hours 11 PM 58° 59° Partly Cloudy NE   2 83% 53°
Tuesday
9 SEP 2025
GROTON, CT 06340 weather forecast Day 2, 0 hours 2 AM 54° 54° Partly Cloudy 0%

0% Thunder
( 0% severe)
NNE   3 90% 51°
Low 51° GROTON, CT 06340 weather forecast Day 2, 3 hours 5 AM 52° 50° Partly Cloudy NNE   7 93% 50°
High 72° GROTON, CT 06340 weather forecast Day 2, 6 hours 8 AM 58° 56° Partly Cloudy 1%

0% Thunder
( 0% severe)
NNE   9 80% 52°

Partly Cloudy



GROTON, CT 06340 weather forecast Day 2, 9 hours 11 AM 68° 68° Partly Cloudy ENE   12 61% 54°
GROTON, CT 06340 weather forecast Day 2, 12 hours 2 PM 72° 72° Partly Cloudy 3%

0% Thunder
( 0% severe)
E   12 55% 55°
GROTON, CT 06340 weather forecast Day 2, 15 hours 5 PM 69° 69° Partly Cloudy E   12 61% 55°
GROTON, CT 06340 weather forecast Day 2, 18 hours 8 PM 63° 62° Partly Cloudy 6%

0% Thunder
( 0% severe)
ENE   10 75% 55°
GROTON, CT 06340 weather forecast Day 2, 21 hours 11 PM 58° 56° Partly Cloudy NE   9 90% 55°

GROTON, CT extended weather forecast

BAD DAY
BAD DATE
BAD DAY
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Low 52° Low 54° Low 56° Low 57° Low 55°
High 73° High 70° High 76° High 71° High 72°
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
Clear
7% Rain
Mostly Cloudy
25% Rain
Partly Cloudy
21% Rain
Clear
15% Rain
Partly Cloudy
22% Rain
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