GROTON, CT 06340 Weather Forecast & Current Conditions

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GROTON, CT
Current Weather

5:56 PM EDT AUG 26, 2025
Clear
72°F
Feels Like: 72°F
Dewpoint: 57°F
Rel. Hum.: 59%
Visibility: 10 miles
Wind: WSW at 12 mph
Pressure: 29.97 inches
Last 72 hours

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GROTON, CT 06340
Weather Forecast

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THIS AFTERNOON
Sunny. Near steady temperature in the upper 70s. Southwest winds 5 to 10 mph.
TONIGHT
Partly cloudy. Lows in the mid 50s. West winds 5 to 10 mph, becoming north after midnight.
WEDNESDAY
Sunny. Highs in the mid 70s. North winds around 5 mph, becoming west in the afternoon.
WEDNESDAY NIGHT
Mostly clear. Lows in the mid 50s. Northwest winds around 5 mph.
THURSDAY
Mostly sunny. Highs in the mid 70s. West winds around 5 mph, becoming southwest in the afternoon.
THURSDAY NIGHT
Partly cloudy. Lows in the lower 60s.
FRIDAY
Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 60 percent.
FRIDAY NIGHT
Mostly cloudy with showers likely with a chance of thunderstorms in the evening, then partly cloudy with a chance of showers after midnight. Lows in the mid 50s. Chance of rain 60 percent.
SATURDAY
Mostly sunny. Highs in the lower 70s.
SATURDAY NIGHT
Mostly clear. Lows in the mid 50s.
SUNDAY
Sunny. Highs in the mid 70s.
SUNDAY NIGHT
Mostly clear. Lows in the mid 50s.
LABOR DAY
Mostly sunny. Highs in the mid 70s.

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 AM CDT  8/26/2025
Tuesday
26 AUG 2025
GROTON, CT 06340 weather forecast Day 1, 12 hours 2 PM 75° 75° Clear 0%

0% Thunder
( 1% severe)
WSW   10 52% 56°
High 76° GROTON, CT 06340 weather forecast Day 1, 15 hours 5 PM 74° 74° Clear WSW   9 53% 56°
Increasing Clouds



GROTON, CT 06340 weather forecast Day 1, 18 hours 8 PM 69° 69° Clear 1%

0% Thunder
( 1% severe)
WSW   6 68% 58°
GROTON, CT 06340 weather forecast Day 1, 21 hours 11 PM 65° 65° Mostly Cloudy W   3 78% 58°
Wednesday
27 AUG 2025
GROTON, CT 06340 weather forecast Day 2, 0 hours 2 AM 62° 63° Partly Cloudy 2%

0% Thunder
( 1% severe)
N   3 78% 55°
Low 58° GROTON, CT 06340 weather forecast Day 2, 3 hours 5 AM 60° 60° Partly Cloudy N   5 75% 52°
High 76° GROTON, CT 06340 weather forecast Day 2, 6 hours 8 AM 63° 63° Partly Cloudy 3%

0% Thunder
( 2% severe)
N   6 70% 53°

Partly Cloudy



GROTON, CT 06340 weather forecast Day 2, 9 hours 11 AM 71° 71° Partly Cloudy NW   7 53% 53°
GROTON, CT 06340 weather forecast Day 2, 12 hours 2 PM 73° 73° Partly Cloudy 5%

0% Thunder
( 6% severe)
WSW   9 51% 54°
GROTON, CT 06340 weather forecast Day 2, 15 hours 5 PM 72° 72° Partly Cloudy WSW   9 55% 55°
GROTON, CT 06340 weather forecast Day 2, 18 hours 8 PM 68° 68° Partly Cloudy 1%

0% Thunder
( 0% severe)
WNW   6 63% 55°
GROTON, CT 06340 weather forecast Day 2, 21 hours 11 PM 63° 64° Clear NW   3 72% 54°
Thursday
28 AUG 2025
GROTON, CT 06340 weather forecast Day 3, 0 hours 2 AM 59° 60° Clear 1%

0% Thunder
( 0% severe)
NW   3 78% 52°
Low 55° GROTON, CT 06340 weather forecast Day 3, 3 hours 5 AM 57° 57° Partly Cloudy NW   3 80% 51°
High 75° GROTON, CT 06340 weather forecast Day 3, 6 hours 8 AM 62° 63° Partly Cloudy 1%

0% Thunder
( 0% severe)
NW   2 72% 53°

Mostly Cloudy



GROTON, CT 06340 weather forecast Day 3, 9 hours 11 AM 70° 70° Partly Cloudy WSW   7 53% 52°
GROTON, CT 06340 weather forecast Day 3, 15 hours 2 PM 73° 73° Mostly Cloudy 1%

0% Thunder
( 2% severe)
SSW   10 51% 54°
GROTON, CT 06340 weather forecast Day 3, 18 hours 5 PM 71° 71° Mostly Cloudy SSW   12 59% 56°
GROTON, CT 06340 weather forecast Day 3, 21 hours 8 PM 68° 68° Partly Cloudy     SSW   9 70% 58°

GROTON, CT extended weather forecast

Friday
29 AUG 2025
Saturday
30 AUG 2025
Sunday
31 AUG 2025
Monday
1 SEP 2025
Tuesday
2 SEP 2025
Low 61° Low 56° Low 53° Low 58° Low 59°
High 74° High 70° High 72° High 77° High 74°
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 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Mostly Cloudy
56% Rain
Partly Cloudy
26% Rain
Partly Cloudy
20% Rain
Clear
19% Rain
Partly Cloudy
21% Rain
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