S
M
T
W
T
F
S
29
46°
16°
30
66°
28°
31
49°
39°
1
48°
34°
2
44°
33°
3
54°
34°
4
60°
38°
5
45°
38°
6
40°
28°
7
36°
23°
8
41°
23°
9
57°
34°
10
57°
37°
11
47°
27°
12
54°
38°
13
62°
51°
14
68°
47°
15
51°
34°
16
52°
33°
17
54°
34°
18
57°
37°
19
57°
36°
20
63°
40°
21
66°
33°
22
47°
34°
23
48°
30°
24
50°
35°
25
55°
37°
26
50°
37°
27
49°
36°
28
51°
36°
29
50°
32°
30
55°
34°
1
57°
40°
2
62°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Groton
Groton's April 2026 forecast shows daily high temperatures ranging from 41° to 68°, with overnight lows between 23° and 51°. The average high for April is 54° with an average low of 36°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Groton. See also: May | June | July.
