GROTON, CT 06340 Weather Forecast & Current Conditions

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06340 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
GROTON, CT Current Weather
3:56 PM EDT SEP 23, 2026
Clear 64°F
Feels Like:	62°F
Dewpoint:	45°F
Rel. Hum.:	50%
Visibility:	10 miles
Wind:	NE at 24 mph, gusts to 32
Pressure:	30.44 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
Partly cloudy this evening, then clearing. Lows in the upper 40s. Northeast winds 15 to 20 mph with gusts up to 30 mph.

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

THURSDAY NIGHT
Mostly cloudy. Lows around 50. Northeast winds 15 to 20 mph with gusts up to 30 mph.

FRIDAY
Mostly cloudy. A chance of showers in the morning, then showers likely in the afternoon. Breezy with highs in the mid 60s. North winds 20 to 25 mph with gusts up to 40 mph. Chance of rain 60 percent.

FRIDAY NIGHT
Showers likely. Breezy with lows in the lower 50s. North winds 20 to 25 mph with gusts up to 40 mph. Chance of rain 70 percent.

SATURDAY
Showers, breezy with highs in the lower 60s. Chance of rain 80 percent.

SATURDAY NIGHT
Showers, mainly in the evening. Lows in the lower 50s. Chance of rain 80 percent.

SUNDAY
Showers likely. Breezy with highs in the mid 60s. Chance of rain 70 percent.

SUNDAY NIGHT
Mostly cloudy. Showers likely, mainly in the evening. Lows in the lower 50s. Chance of rain 60 percent.

MONDAY
Mostly cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Highs in the mid 60s. Chance of rain 30 percent.

MONDAY NIGHT
Mostly cloudy. Lows in the lower 50s.

TUESDAY
Mostly sunny. Highs in the upper 60s.

TUESDAY NIGHT
Partly cloudy. Lows in the lower 50s.

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 9/23/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
23 SEP 2026

2 PM

65°

65°

Partly Cloudy

0%

0% Thunder
( 0% severe)

ENE 18

54%

48°

High 66°

5 PM

63°

61°

Partly Cloudy

NE 17

56%

47°

Partly Cloudy

8 PM

57°

54°

Partly Cloudy

0%

0% Thunder
( 0% severe)

NE 14

67%

46°

11 PM

54°

50°

Partly Cloudy

NE 13

80%

48°

Thursday
24 SEP 2026

2 AM

52°

48°

Partly Cloudy

0%

0% Thunder
( 1% severe)

NE 13

86%

48°

Low 49°

5 AM

51°

46°

Partly Cloudy

NNE 15

86%

47°

High 67°

8 AM

55°

51°

Partly Cloudy

0%

0% Thunder
( 1% severe)

NE 16

77%

48°

Partly Cloudy

Breezy

11 AM

64°

62°

Partly Cloudy

NE 18

58%

49°

2 PM

65°

65°

Partly Cloudy

1%

0% Thunder
( 0% severe)

NE 17

58%

50°

5 PM

63°

61°

Mostly Cloudy

NE 16

58%

48°

8 PM

57°

54°

Mostly Cloudy

6%

0% Thunder
( 0% severe)

NNE 14

67%

46°

11 PM

54°

50°

Mostly Cloudy

NNE 15

74%

46°

Friday
25 SEP 2026

2 AM

53°

48°

Mostly Cloudy

13%
RAIN
.25–.5 in

0% Thunder
( 1% severe)

NNE 15

80%

47°

Low 50°

5 AM

52°

46°

Mostly Cloudy

NNE 18

83%

47°

High 65°

8 AM

56°

52°

Mostly Cloudy

40%
RAIN
***

0% Thunder
( 1% severe)

NNE 20

74%

48°

Mostly Cloudy

Chance of Rain

Windy

11 AM

61°

58°

Mostly Cloudy

NNE 22

70%

51°

2 PM

63°

60°

Mostly Cloudy

49%
RAIN
***

0% Thunder
( 1% severe)

NNE 22

67%

52°

5 PM

62°

59°

Mostly Cloudy

NNE 21

67%

51°

8 PM

58°

54°

Mostly Cloudy

NNE 20

75%

50°


GROTON, CT extended weather forecast
Saturday 26 SEP 2026	Sunday 27 SEP 2026	Monday 28 SEP 2026	Tuesday 29 SEP 2026	Wednesday 30 SEP 2026
Low 52°	Low 52°	Low 53°	Low 54°	Low 56°
High 66°	High 65°	High 70°	High 72°	High 71°

Overcast 72% Rain	Overcast 75% Rain	Mostly Cloudy 36% Rain	Partly Cloudy 30% Rain	Partly Cloudy 31% Rain

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