GROTON, CT 06340 Weather Forecast & Current Conditions

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06340 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
GROTON, CT Current Weather
2:56 AM EDT JUL 22, 2026
Broken Clouds 72°F
Feels Like:	72°F
Dewpoint:	70°F
Rel. Hum.:	93%
Visibility:	10 miles
Wind:	WSW at 8 mph
Pressure:	29.67 inches
Last 72 hours
Local Area Snow Depth
Connecticut Current Weather
Connecticut MOS Forecast Weather

Weather Map

(Automated weather data from NWS/FAA)

06340 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	GROTON, CT 06340 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Mostly cloudy with a chance of showers with a slight chance of thunderstorms this morning, then partly sunny with a slight chance of showers and thunderstorms this afternoon. Highs in the lower 80s. Southwest winds 10 to 15 mph. Chance of rain 50 percent.

TONIGHT
Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows around 60. West winds 5 to 10 mph, becoming north after midnight. Chance of rain 40 percent.

THURSDAY
Sunny. Highs around 80. North winds around 5 mph, becoming southwest in the afternoon.

THURSDAY NIGHT
Mostly clear. Lows in the upper 50s. South winds around 5 mph in the evening, becoming light and variable.

FRIDAY
Sunny. Highs in the lower 80s. Northeast winds around 5 mph, becoming southeast around 5 mph in the afternoon.

FRIDAY NIGHT
Mostly clear. Lows around 60.

SATURDAY
Sunny. Highs in the lower 80s.

SATURDAY NIGHT
Partly cloudy. Lows around 60.

SUNDAY
Mostly sunny. Highs in the lower 80s.

SUNDAY NIGHT
Partly cloudy. Lows in the mid 60s.

MONDAY
Partly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.

MONDAY NIGHT
Mostly cloudy with a 40 percent chance of showers. Lows in the mid 60s.

TUESDAY
Partly sunny. A chance of showers. Highs in the lower 80s. Chance of rain 40 percent.

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 PM CDT 7/21/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
22 JUL 2026

2 AM

72°

72°

Mostly Cloudy

58%
RAIN
***

0% Thunder
( 21% severe)

SW 13

97%

71°

Low 71°

5 AM

72°

72°

Mostly Cloudy

SW 14

97%

71°

High 82°

8 AM

75°

75°

Mostly Cloudy

13%
RAIN
.01–.1 in

0% Thunder
( 16% severe)

SW 13

90%

72°

Decreasing Clouds

Chance of Rain

11 AM

80°

84°

Mostly Cloudy

SW 13

77%

72°

2 PM

82°

86°

Partly Cloudy

27%
RAIN
.1–.25 in

0% Thunder
( 19% severe)

SW 14

69%

71°

5 PM

82°

86°

Clear

SW 13

67%

70°

8 PM

76°

77°

Partly Cloudy

6%

0% Thunder
( 4% severe)

W 7

76%

68°

11 PM

70°

70°

Partly Cloudy

NW 6

81%

64°

Thursday
23 JUL 2026

2 AM

66°

66°

Partly Cloudy

15%
RAIN
<.01 in

0% Thunder
( 1% severe)

N 7

78%

59°

Low 60°

5 AM

62°

62°

Partly Cloudy

N 7

78%

55°

High 78°

8 AM

67°

67°

Partly Cloudy

1%

0% Thunder
( 1% severe)

N 8

68%

56°

Partly Cloudy

11 AM

75°

75°

Partly Cloudy

NA 7

52%

56°

2 PM

78°

79°

Partly Cloudy

0%

0% Thunder
( 1% severe)

S 6

48%

57°

5 PM

78°

79°

Clear

S 6

48%

57°

8 PM

70°

70°

Clear

0%

0% Thunder
( 1% severe)

SSE 1

68%

59°

11 PM

65°

65°

Clear

CALM

78%

58°


GROTON, CT extended weather forecast
Friday 24 JUL 2026	Saturday 25 JUL 2026	Sunday 26 JUL 2026	Monday 27 JUL 2026	Tuesday 28 JUL 2026
Low 57°	Low 57°	Low 60°	Low 65°	Low 69°
High 78°	High 78°	High 76°	High 78°	High 79°

Partly Cloudy 4% Rain	Partly Cloudy 7% Rain	Partly Cloudy 16% Rain	Overcast 41% Rain	Overcast 55% Rain

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