S
M
T
W
T
F
S
29
52°
34°
30
51°
36°
31
42°
31°
1
34°
27°
2
36°
30°
3
44°
33°
4
45°
30°
5
48°
31°
6
41°
22°
7
35°
31°
8
53°
38°
9
43°
33°
10
46°
35°
11
43°
39°
12
53°
38°
13
51°
39°
14
50°
36°
15
49°
37°
16
50°
34°
17
42°
36°
18
51°
35°
19
50°
42°
20
58°
44°
21
59°
44°
22
59°
45°
23
58°
44°
24
57°
41°
25
48°
37°
26
47°
34°
27
45°
34°
28
50°
40°
29
52°
41°
30
51°
39°
1
56°
42°
2
55°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Casco
Casco's April 2026 forecast shows daily high temperatures ranging from 35° to 59°, with overnight lows between 22° and 45°. The average high for April is 50° with an average low of 37°. 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 Casco. See also: May | June | July.
