GROTON, CT 06340 Weather Forecast & Current Conditions

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06340 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
GROTON, CT Current Weather
7:56 PM EDT OCT 21, 2026
Clear 52°F
Feels Like:	47°F
Dewpoint:	37°F
Rel. Hum.:	56%
Visibility:	10 miles
Wind:	NNE at 14 mph, gusts to 22
Pressure:	30.09 inches
Last 72 hours
Local Area Snow Depth
Connecticut Current Weather
Connecticut MOS Forecast Weather

Regional Weather Maps

(Automated weather data from NWS/FAA)

06340 WEATHER FORECAST
10-Day model forecast maps 2026 Hurricanes	GROTON, CT 06340 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TONIGHT
Mostly cloudy. Lows in the mid 40s. North winds 15 to 20 mph with gusts up to 30 mph.

THURSDAY
Mostly sunny. Highs in the mid 60s. North winds 15 to 20 mph with gusts up to 30 mph.

THURSDAY NIGHT
Clear. Lows in the upper 30s. North winds 10 to 15 mph.

FRIDAY
Sunny. Highs in the mid 50s. North winds 5 to 10 mph. Gusts up to 20 mph in the morning.

FRIDAY NIGHT
Mostly clear. Patchy frost in the evening. Areas of frost after midnight. Lows in the mid 30s. Northeast winds around 5 mph.

SATURDAY
Patchy frost in the morning. Sunny. Highs in the upper 50s.

SATURDAY NIGHT
Clear. Lows in the mid 30s.

SUNDAY
Sunny. Highs in the lower 60s.

SUNDAY NIGHT
Mostly clear. Lows in the lower 40s.

MONDAY
Sunny. Highs in the mid 60s.

MONDAY NIGHT
Mostly clear. Lows in the mid 40s.

TUESDAY
Mostly sunny. Highs in the lower 60s.

TUESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s.

06340 WEATHER SATELLITE LOOPS

Visible Weather Satellite
GROTON, CT 06340

Infrared Weather Satellite
GROTON, CT 06340

06340 WEATHER RADAR LOOP

NEXRAD Weather Radar
GROTON, CT 06340

MOS COMPUTER WEATHER FORECAST

GROTON, CT 3 hourly weather forecast

weather forecast created 7:00 AM CDT 10/21/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

TIME
EDT

TEMP
(deg. F)

FEELS
LIKE

CLOUD
COVER

PRECIP
PROB.

THUNDER
PROB.

WIND
dir./mph

REL
HUM

DEWPT
(deg. F)

Wednesday
21 OCT 2026

2 PM

57°

53°

Partly Cloudy

0% Thunder
( 0% severe)

NNE 17

64%

45°

High 58°

5 PM

53°

48°

Mostly Cloudy

NNE 16

64%

41°

Mostly Cloudy

8 PM

49°

43°

Mostly Cloudy

0% Thunder
( 0% severe)

NNE 15

80%

43°

11 PM

48°

42°

Mostly Cloudy

NNE 15

83%

43°

Thursday
22 OCT 2026

2 AM

47°

40°

Mostly Cloudy

0% Thunder
( 0% severe)

N 16

80%

41°

Low 44°

5 AM

46°

39°

Overcast

N 16

76%

39°

High 64°

8 AM

47°

41°

Mostly Cloudy

0% Thunder
( 0% severe)

NA 15

71%

38°

Decreasing Clouds

11 AM

57°

54°

Mostly Cloudy

N 15

45%

36°

2 PM

63°

61°

Partly Cloudy

0% Thunder
( 0% severe)

N 14

39%

38°

5 PM

61°

60°

Clear

N 10

48%

41°

8 PM

54°

51°

Clear

0% Thunder
( 0% severe)

N 12

69%

44°

11 PM

50°

45°

Clear

N 14

71%

41°

Friday
23 OCT 2026

2 AM

45°

39°

Clear

0% Thunder
( 0% severe)

N 13

73%

37°

Low 39°

5 AM

41°

34°

Clear

NA 12

76%

34°

High 57°

8 AM

40°

33°

Clear

0% Thunder
( 0% severe)

NA 12

73%

32°

Clear

11 AM

50°

45°

Clear

N 13

44%

29°

2 PM

55°

52°

Clear

0% Thunder
( 0% severe)

N 10

38%

30°

5 PM

53°

51°

Clear

NNE 7

41%

30°

8 PM

45°

44°

Clear

NNE 3

65%

34°


GROTON, CT extended weather forecast
Saturday 24 OCT 2026	Sunday 25 OCT 2026	Monday 26 OCT 2026	Tuesday 27 OCT 2026	Wednesday 28 OCT 2026
Low 35°	Low 37°	Low 38°	Low 43°	Low 49°
High 60°	High 62°	High 64°	High 61°	High 58°

Clear 4% Rain	Clear 9% Rain	Partly Cloudy 20% Rain	Mostly Cloudy 18% Rain	Overcast 42% Rain

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GROTON, CT 06340 Weather Forecast & Current Conditions

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GROTON, CT 06340 Weather Forecast

GROTON, CT 3 hourly weather forecast

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GROTON, CT
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GROTON, CT 06340
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