OLD SAYBROOK, CT 06475 Weather Forecast & Current Conditions

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GROTON, CT
Current Weather

11:56 PM EDT JUL 2, 2025
NA
Feels Like: NA
Dewpoint: NA
Rel. Hum.: NA%
Visibility:
Wind:
Pressure: 29.83 inches
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OLD SAYBROOK, CT 06475
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly cloudy this evening, then becoming partly cloudy. A slight chance of showers this evening. Patchy fog after midnight. Lows in the mid 60s. West winds around 5 mph. Chance of rain 20 percent.
THURSDAY
Patchy fog in the morning. Sunny. Highs in the upper 80s. West winds 5 to 10 mph.
THURSDAY NIGHT
Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Some thunderstorms may produce gusty winds in the evening. Lows in the mid 60s. Northwest winds 5 to 10 mph. Chance of rain 30 percent.
INDEPENDENCE DAY
Sunny. Highs in the mid 80s. Northwest winds 5 to 10 mph. Gusts up to 20 mph in the afternoon.
FRIDAY NIGHT
Mostly clear. Lows in the lower 60s. Northwest winds 5 to 10 mph.
SATURDAY
Sunny. Highs in the lower 80s.
SATURDAY NIGHT
Partly cloudy. Lows in the upper 60s.
SUNDAY
Mostly sunny. Highs in the mid 80s.
SUNDAY NIGHT
Mostly clear. Lows in the upper 60s.
MONDAY
Sunny. Highs in the upper 80s. Heat index values in the mid 90s in the afternoon.
MONDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 70s.
TUESDAY
Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent.
TUESDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the upper 60s. Chance of rain 40 percent.

Visible Weather Satellite
OLD SAYBROOK, CT 06475
Infrared Weather Satellite
OLD SAYBROOK, CT 06475
NEXRAD Weather Radar
OLD SAYBROOK, CT 06475

GROTON, CT 3 hourly weather forecast

weather forecast created  7:00 PM CDT  7/ 2/2025
Thursday
3 JUL 2025
OLD SAYBROOK, CT 06475 weather forecast Day 1, 0 hours 2 AM 68° 68° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   2 97% 67°
Low 66° OLD SAYBROOK, CT 06475 weather forecast Day 1, 3 hours 5 AM 67° 67° Partly Cloudy W   1 97% 66°
High 83° OLD SAYBROOK, CT 06475 weather forecast Day 1, 6 hours 8 AM 72° 72° Partly Cloudy 0%

0% Thunder
( 2% severe)
WNW   2 84% 67°

Partly Cloudy



OLD SAYBROOK, CT 06475 weather forecast Day 1, 9 hours 11 AM 79° 81° Partly Cloudy WSW   7 69% 68°
OLD SAYBROOK, CT 06475 weather forecast Day 1, 12 hours 2 PM 82° 84° Partly Cloudy 14%
RAIN
<.01 in
0% Thunder
( 25% severe)
WSW   9 58% 66°
OLD SAYBROOK, CT 06475 weather forecast Day 1, 15 hours 5 PM 80° 82° Partly Cloudy W   9 62% 66°
OLD SAYBROOK, CT 06475 weather forecast Day 1, 18 hours 8 PM 75° 75° Partly Cloudy 27%
RAIN
>2 in
0% Thunder
( 18% severe)
W   7 74% 66°
OLD SAYBROOK, CT 06475 weather forecast Day 1, 21 hours 11 PM 71° 71° Mostly Cloudy WNW   5 81% 65°
Friday
4 JUL 2025
OLD SAYBROOK, CT 06475 weather forecast Day 2, 0 hours 2 AM 68° 68° Partly Cloudy 0%

0% Thunder
( 1% severe)
NNW   5 81% 62°
Low 63° OLD SAYBROOK, CT 06475 weather forecast Day 2, 3 hours 5 AM 65° 65° Partly Cloudy N   6 84% 60°
High 81° OLD SAYBROOK, CT 06475 weather forecast Day 2, 6 hours 8 AM 70° 70° Clear 0%

0% Thunder
( 1% severe)
NNW   6 73% 61°

Clear



OLD SAYBROOK, CT 06475 weather forecast Day 2, 9 hours 11 AM 76° 78° Clear NW   7 58% 60°
OLD SAYBROOK, CT 06475 weather forecast Day 2, 12 hours 2 PM 80° 81° Clear 0%

0% Thunder
( 2% severe)
WNW   8 47% 58°
OLD SAYBROOK, CT 06475 weather forecast Day 2, 15 hours 5 PM 79° 80° Clear WNW   8 49% 58°
OLD SAYBROOK, CT 06475 weather forecast Day 2, 18 hours 8 PM 75° 75° Clear 0%

0% Thunder
( 1% severe)
NW   6 55% 58°
OLD SAYBROOK, CT 06475 weather forecast Day 2, 21 hours 11 PM 69° 69° Clear NNW   3 68% 58°

GROTON, CT extended weather forecast

BAD DAY
BAD DATE
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Low 63° Low 58° Low 64° Low 67° Low 69°
High 82° High 79° High 82° High 82° High 79°
OLD SAYBROOK, CT 06475 weather forecast Day 3 OLD SAYBROOK, CT 06475 weather forecast Day 4 OLD SAYBROOK, CT 06475 weather forecast Day 5 OLD SAYBROOK, CT 06475 weather forecast Day 6 OLD SAYBROOK, CT 06475 weather forecast Day 7
Partly Cloudy
41% Rain
Clear
3% Rain
Clear
11% Rain
Partly Cloudy
28% Rain
Overcast
52% Rain
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