GROTON, CT 06340 Weather Forecast & Current Conditions

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GROTON, CT
Current Weather

5:56 PM EDT OCT 8, 2026
Clear
66°F
Feels Like: 66°F
Dewpoint: 48°F
Rel. Hum.: 52%
Visibility: 10 miles
Wind: WSW at 6 mph
Pressure: 29.86 inches
Last 72 hours

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GROTON, CT 06340
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
THIS AFTERNOON
Sunny. Near steady temperature around 70. West winds 5 to 10 mph with gusts up to 25 mph.
TONIGHT
Clear. Lows around 50. Northwest winds 5 to 10 mph. Gusts up to 20 mph in the evening.
FRIDAY
Sunny. Highs in the upper 60s. West winds 10 to 15 mph.
FRIDAY NIGHT
Mostly clear. Lows in the upper 40s. Northwest winds around 5 mph.
SATURDAY
Sunny. Highs in the mid 60s. Northwest winds around 5 mph.
SATURDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 50s.
SUNDAY
Partly sunny in the morning, then becoming mostly cloudy. Highs in the upper 60s.
SUNDAY NIGHT
Showers. Lows in the upper 50s. Chance of rain 90 percent.
COLUMBUS DAY
Mostly cloudy. Showers, mainly in the morning. Highs around 70. Chance of rain 90 percent.
MONDAY NIGHT
Partly cloudy. Lows in the upper 50s.
TUESDAY
Mostly sunny. Highs around 70.
TUESDAY NIGHT
Mostly cloudy with a 30 percent chance of showers. Lows in the lower 50s.
WEDNESDAY
Mostly sunny. Highs in the lower 60s.

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  9/30/2026
Wednesday
30 SEP 2026
GROTON, CT 06340 weather forecast Day 1, 12 hours 2 PM 68° 68° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSW   7 73% 59°
High 69° GROTON, CT 06340 weather forecast Day 1, 15 hours 5 PM 68° 68° Mostly Cloudy SSW   6 70% 58°
Mostly Cloudy



GROTON, CT 06340 weather forecast Day 1, 18 hours 8 PM 62° 62° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSW   5 90% 59°
GROTON, CT 06340 weather forecast Day 1, 21 hours 11 PM 60° 60° Mostly Cloudy SW   5 100% 60°
Thursday
1 OCT 2026
GROTON, CT 06340 weather forecast Day 2, 0 hours 2 AM 60° 61° Mostly Cloudy 1%

0% Thunder
( 2% severe)
SW   3 100% 60°
Low 58° GROTON, CT 06340 weather forecast Day 2, 3 hours 5 AM 61° 61° Mostly Cloudy SW   5 100% 61°
High 73° GROTON, CT 06340 weather forecast Day 2, 6 hours 8 AM 63° 63° Mostly Cloudy 4%

0% Thunder
( 1% severe)
WSW   6 100% 63°

Mostly Cloudy



GROTON, CT 06340 weather forecast Day 2, 9 hours 11 AM 71° 71° Partly Cloudy SW   10 79% 64°
GROTON, CT 06340 weather forecast Day 2, 12 hours 2 PM 73° 73° Mostly Cloudy 8%

0% Thunder
( 0% severe)
SW   12 76% 65°
GROTON, CT 06340 weather forecast Day 2, 15 hours 5 PM 72° 72° Partly Cloudy SW   12 76% 64°
GROTON, CT 06340 weather forecast Day 2, 18 hours 8 PM 67° 67° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   9 90% 64°
GROTON, CT 06340 weather forecast Day 2, 21 hours 11 PM 66° 66° Partly Cloudy SW   8 93% 64°
Friday
2 OCT 2026
GROTON, CT 06340 weather forecast Day 3, 0 hours 2 AM 66° 66° Partly Cloudy 0%

0% Thunder
( 1% severe)
SW   8 93% 64°
Low 64° GROTON, CT 06340 weather forecast Day 3, 3 hours 5 AM 66° 66° Partly Cloudy SW   9 93% 64°
High 77° GROTON, CT 06340 weather forecast Day 3, 6 hours 8 AM 67° 67° Partly Cloudy 0%

0% Thunder
( 1% severe)
SW   9 90% 64°

Partly Cloudy



GROTON, CT 06340 weather forecast Day 3, 9 hours 11 AM 75° 75° Partly Cloudy SW   12 71% 65°
GROTON, CT 06340 weather forecast Day 3, 15 hours 2 PM 77° 79° Partly Cloudy 3%

0% Thunder
( 4% severe)
SW   13 67% 65°
GROTON, CT 06340 weather forecast Day 3, 18 hours 5 PM 75° 75° Partly Cloudy SW   12 71% 65°
GROTON, CT 06340 weather forecast Day 3, 21 hours 8 PM 70° 70° Mostly Cloudy     WSW   9 81% 64°

GROTON, CT extended weather forecast

Saturday
3 OCT 2026
Sunday
4 OCT 2026
Monday
5 OCT 2026
Tuesday
6 OCT 2026
Wednesday
7 OCT 2026
Low 58° Low 49° Low 51° Low 47° Low 43°
High 68° High 66° High 71° High 58° High 61°
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
Partly Cloudy
38% Rain
Partly Cloudy
19% Rain
Mostly Cloudy
41% Rain
Partly Cloudy
28% Rain
Clear
15% Rain
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