GROTON, CT 06340 Weather Forecast & Current Conditions

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GROTON, CT
Current Weather

5:56 AM EST JAN 2, 2026
Overcast
19°F
Feels Like: 9°F
Dewpoint: 10°F
Rel. Hum.: 64%
Visibility: 10 miles
Wind: W at 8 mph
Pressure: 29.77 inches
Last 72 hours

Local Area Snow Depth

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GROTON, CT 06340
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly sunny. Highs in the upper 20s. West winds 5 to 10 mph with gusts up to 20 mph.
TONIGHT
Mostly clear. Lows around 17. West winds 5 to 10 mph.
SATURDAY
Sunny in the morning, then becoming partly sunny. Highs around 30. West winds 5 to 10 mph.
SATURDAY NIGHT
Mostly cloudy. A chance of snow after midnight. Lows around 20. Northwest winds around 5 mph. Chance of snow 30 percent.
SUNDAY
Partly sunny in the morning, then clearing. Highs in the lower 30s. Northwest winds 5 to 10 mph.
SUNDAY NIGHT
Mostly clear. Lows 10 to 15.
MONDAY
Sunny in the morning, then becoming partly sunny. Highs in the lower 30s.
MONDAY NIGHT
Cloudy. Lows in the lower 20s.
TUESDAY
Mostly cloudy. Highs in the lower 40s.
TUESDAY NIGHT
Mostly cloudy. Lows in the lower 30s.
WEDNESDAY
Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 40s.
WEDNESDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 20s.
THURSDAY
Mostly sunny. Highs in the lower 40s.

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  6:00 PM CST  1/ 1/2026
Friday
2 JAN 2026
GROTON, CT 06340 weather forecast Day 1, 0 hours 1 AM 17° Mostly Cloudy 7%

0% Thunder
( 0% severe)
W   9 46%
Low 16° GROTON, CT 06340 weather forecast Day 1, 3 hours 4 AM 19° Mostly Cloudy W   9 52%
High 28° GROTON, CT 06340 weather forecast Day 1, 6 hours 7 AM 18° Mostly Cloudy 3%

0% Thunder
( 0% severe)
W   9 57%

Mostly Cloudy



GROTON, CT 06340 weather forecast Day 1, 9 hours 10 AM 23° 12° Mostly Cloudy W   12 50%
GROTON, CT 06340 weather forecast Day 1, 12 hours 1 PM 28° 17° Partly Cloudy 0%

0% Thunder
( 1% severe)
W   13 42% 10°
GROTON, CT 06340 weather forecast Day 1, 15 hours 4 PM 27° 17° Partly Cloudy W   12 44% 10°
GROTON, CT 06340 weather forecast Day 1, 18 hours 7 PM 24° 14° Clear 0%

0% Thunder
( 0% severe)
W   9 51% 10°
GROTON, CT 06340 weather forecast Day 1, 21 hours 10 PM 22° 13° Partly Cloudy W   8 53%
Saturday
3 JAN 2026
GROTON, CT 06340 weather forecast Day 2, 0 hours 1 AM 20° 10° Clear 0%

0% Thunder
( 0% severe)
W   8 55%
Low 16° GROTON, CT 06340 weather forecast Day 2, 3 hours 4 AM 19° Clear WNW   8 55%
High 30° GROTON, CT 06340 weather forecast Day 2, 6 hours 7 AM 18° Clear 0%

0% Thunder
( 0% severe)
W   8 60%

Increasing Clouds



GROTON, CT 06340 weather forecast Day 2, 9 hours 10 AM 25° 15° Partly Cloudy W   9 46%
GROTON, CT 06340 weather forecast Day 2, 12 hours 1 PM 29° 20° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   10 41% 10°
GROTON, CT 06340 weather forecast Day 2, 15 hours 4 PM 28° 21° Mostly Cloudy W   7 45% 11°
GROTON, CT 06340 weather forecast Day 2, 18 hours 7 PM 26° 22° Mostly Cloudy 3%

0% Thunder
( 0% severe)
WNW   3 51% 12°
GROTON, CT 06340 weather forecast Day 2, 21 hours 10 PM 24° 20° Mostly Cloudy NW   2 56% 12°

GROTON, CT extended weather forecast

Sunday
4 JAN 2026
Monday
5 JAN 2026
Tuesday
6 JAN 2026
Wednesday
7 JAN 2026
Thursday
8 JAN 2026
Low 23° Low 16° Low 23° Low 30° Low 25°
High 36° High 24° High 43° High 42° High 44°
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
45% Snow
Partly Cloudy
3% Snow
Overcast
29% Rain/Snow
Overcast
34% Rain
Mostly Cloudy
33% Rain
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