S
M
T
W
T
F
S
29
48°
28°
30
66°
26°
31
51°
38°
1
41°
29°
2
45°
28°
3
73°
34°
4
49°
34°
5
49°
31°
6
43°
26°
7
32°
17°
8
43°
15°
9
63°
27°
10
43°
33°
11
50°
26°
12
45°
26°
13
64°
41°
14
71°
43°
15
60°
43°
16
66°
52°
17
N/A
18
65°
33°
19
43°
25°
20
40°
21°
21
47°
32°
22
57°
30°
23
55°
36°
24
65°
44°
25
58°
41°
26
58°
37°
27
55°
37°
28
52°
36°
29
52°
38°
30
54°
39°
1
58°
45°
2
51°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Peterborough
Peterborough's April 2026 forecast shows daily high temperatures ranging from 40° to 65°, with overnight lows between 21° and 45°. The average high for April is 54° with an average low of 35°. 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 Peterborough. See also: May | June | July.