S
M
T
W
T
F
S
29
50°
22°
30
70°
38°
31
78°
53°
1
75°
46°
2
40°
34°
3
64°
48°
4
65°
43°
5
59°
33°
6
44°
29°
7
43°
22°
8
42°
26°
9
53°
40°
10
63°
35°
11
62°
39°
12
59°
41°
13
61°
42°
14
59°
39°
15
55°
33°
16
56°
28°
17
47°
27°
18
48°
29°
19
49°
31°
20
57°
39°
21
61°
40°
22
61°
39°
23
51°
38°
24
55°
41°
25
63°
41°
26
61°
40°
27
53°
38°
28
54°
34°
29
54°
38°
30
60°
41°
1
57°
38°
2
56°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Cornwall
Cornwall's April 2026 forecast shows daily high temperatures ranging from 40° to 65°, with overnight lows between 22° and 48°. The average high for April is 55° 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 Cornwall. See also: May | June | July.
