26.06
fri
fri
Day
70°F
N 9 mph
Precip.
25%
25%
Night
68°F
E 1 mph
Precip.
18%
18%
27.06
sat
sat
Day
75°F
N 6 mph
Precip.
8%
8%
Night
64°F
NE 6 mph
Precip.
33%
33%
28.06
sun
sun
Day
75°F
N 4 mph
Precip.
12%
12%
Night
64°F
NE 4 mph
Precip.
34%
34%
29.06
mon
mon
Day
75°F
NW 6 mph
Precip.
5%
5%
Night
64°F
NE 6 mph
Precip.
20%
20%
30.06
tue
tue
Day
73°F
NE 9 mph
Precip.
13%
13%
Night
66°F
SW 8 mph
Precip.
17%
17%
01.07
wed
wed
Day
72°F
NW 9 mph
Precip.
6%
6%
Night
64°F
N 5 mph
Precip.
16%
16%
02.07
thu
thu
Day
77°F
NE 11 mph
Precip.
10%
10%
Night
77°F
SE 7 mph
Precip.
7%
7%
03.07
fri
fri
Day
88°F
SE 7 mph
Precip.
2%
2%
Night
79°F
SE 9 mph
Precip.
6%
6%
04.07
sat
sat
Day
77°F
SW 14 mph
Precip.
9%
9%
Night
61°F
SW 7 mph
Precip.
11%
11%
05.07
sun
sun
Day
72°F
NW 9 mph
Precip.
3%
3%
Night
63°F
NE 6 mph
Precip.
12%
12%
06.07
mon
mon
Day
72°F
N 8 mph
Precip.
5%
5%
Night
63°F
NW 7 mph
Precip.
17%
17%
07.07
tue
tue
Day
70°F
N 9 mph
Precip.
9%
9%
Night
66°F
N 8 mph
Precip.
18%
18%
08.07
wed
wed
Day
75°F
N 11 mph
Precip.
7%
7%
Night
70°F
N 10 mph
Precip.
18%
18%
09.07
thu
thu
Day
75°F
N 12 mph
Precip.
26%
26%
Night
72°F
N 9 mph
Precip.
34%
34%
Sea water temperature in June, °F
Show year:
2026
2025
2024
The average sea water temperature in June of 2026 was 60.1°F. The highest and lowest sea temperatures during the month were 64.0°F and 52.9°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 69.9°F. The highest and lowest sea temperatures during the month were 72.7°F and 65.7°F.
Air temperature in Groton, °F
Precipitation total in Groton, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Groton
Groton on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Groton
Local time: 18:16
June 26, friday
2100
70°F
N
6 mph
6 mph
June 27, saturday
0000
68°F
E
1 mph
1 mph
0300
68°F
S
2 mph
2 mph
0600
66°F
S
4 mph
4 mph
0900
70°F
S
5 mph
5 mph
1200
75°F
N
6 mph
6 mph
1500
70°F
NE
7 mph
7 mph
1800
70°F
NE
7 mph
7 mph
