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 PM EDT JUL 15, 2025
Clear 79°F
Feels Like:	83°F
Dewpoint:	75°F
Rel. Hum.:	88%
Visibility:	10 miles
Wind:	S at 9 mph
Pressure:	30.06 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 2025 Hurricanes	GROTON, CT 06340 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TONIGHT
Mostly clear this evening, then becoming mostly cloudy. Patchy fog. Lows around 70. Southwest winds around 5 mph this evening, becoming light and variable.

WEDNESDAY
Patchy fog in the morning. Mostly sunny. Humid with highs in the mid 80s. Southwest winds 5 to 10 mph. Heat index values in the upper 90s in the afternoon.

WEDNESDAY NIGHT
Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 40 percent.

THURSDAY
Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny with showers likely with a chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the afternoon. Chance of rain 60 percent. Heat index values in the upper 90s in the afternoon.

THURSDAY NIGHT
Partly cloudy. Showers likely with a chance of thunderstorms in the evening. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the evening. Chance of rain 60 percent.

FRIDAY
Sunny. Highs in the upper 80s.

FRIDAY NIGHT
Mostly clear. Lows in the mid 60s.

SATURDAY
Sunny. Highs in the lower 80s.

SATURDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 60s.

SUNDAY
Partly sunny with a 40 percent chance of showers. Highs in the lower 80s.

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

MONDAY
Mostly sunny. Highs in the lower 80s.

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

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 7/15/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Tuesday
15 JUL 2025

2 PM

79°

83°

Partly Cloudy

7%

0% Thunder
( 10% severe)

SSW 7

91%

76°

High 80°

5 PM

79°

83°

Clear

SSW 7

88%

75°

Partly Cloudy

8 PM

76°

76°

Partly Cloudy

1%

0% Thunder
( 3% severe)

SSW 5

94%

74°

11 PM

73°

73°

Partly Cloudy

SW 1

100%

73°

Wednesday
16 JUL 2025

2 AM

72°

72°

Mostly Cloudy

1%

0% Thunder
( 1% severe)

WSW 1

100%

72°

Low 70°

5 AM

71°

71°

Mostly Cloudy

SW 1

100%

71°

High 83°

8 AM

74°

74°

Mostly Cloudy

2%

0% Thunder
( 6% severe)

SSW 1

100%

74°

Partly Cloudy

11 AM

78°

81°

Partly Cloudy

SSW 6

97%

77°

2 PM

81°

88°

Partly Cloudy

5%

0% Thunder
( 12% severe)

S 8

88%

77°

5 PM

81°

87°

Partly Cloudy

SSW 9

85%

76°

8 PM

78°

81°

Mostly Cloudy

17%
RAIN
<.01 in

0% Thunder
( 13% severe)

SSW 7

91%

75°

11 PM

75°

75°

Mostly Cloudy

SSW 6

97%

74°

Thursday
17 JUL 2025

2 AM

74°

74°

Mostly Cloudy

30%
RAIN
***

0% Thunder
( 13% severe)

SSW 6

100%

74°

Low 72°

5 AM

74°

74°

Mostly Cloudy

SSW 6

97%

73°

High 83°

8 AM

75°

75°

Mostly Cloudy

23%
RAIN
.1–.25 in

0% Thunder
( 17% severe)

SSW 7

100%

75°

Mostly Cloudy

Chance of Rain

11 AM

77°

78°

Mostly Cloudy

SSW 10

100%

77°

2 PM

81°

89°

Mostly Cloudy

19%
RAIN
.01–.1 in

0% Thunder
( 25% severe)

SSW 12

91%

78°

5 PM

81°

88°

Partly Cloudy

SSW 12

88%

77°

8 PM

78°

81°

Mostly Cloudy

SW 9

94%

76°


GROTON, CT extended weather forecast
Friday 18 JUL 2025	Saturday 19 JUL 2025	Sunday 20 JUL 2025	Monday 21 JUL 2025	Tuesday 22 JUL 2025
Low 74°	Low 63°	Low 64°	Low 67°	Low 64°
High 83°	High 79°	High 77°	High 79°	High 79°

Partly Cloudy 14% Rain	Clear 11% Rain	Mostly Cloudy 34% Rain	Mostly Cloudy 66% Rain	Partly Cloudy 34% Rain

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