S
M
T
W
T
F
S
29
47°
22°
30
55°
39°
31
61°
45°
1
60°
47°
2
47°
38°
3
54°
38°
4
68°
41°
5
54°
41°
6
52°
33°
7
54°
27°
8
46°
29°
9
46°
35°
10
55°
45°
11
63°
36°
12
56°
44°
13
66°
53°
14
73°
45°
15
65°
44°
16
56°
41°
17
56°
43°
18
59°
45°
19
59°
43°
20
57°
41°
21
62°
45°
22
60°
46°
23
56°
46°
24
59°
45°
25
63°
42°
26
54°
41°
27
54°
41°
28
56°
43°
29
56°
41°
30
54°
40°
1
56°
45°
2
57°
41°
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 46° to 73°, with overnight lows between 27° and 53°. The average high for April is 58° with an average low of 42°. 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.
