S
M
T
W
T
F
S
29
41°
15°
30
55°
37°
31
46°
36°
1
53°
36°
2
37°
33°
3
46°
34°
4
52°
36°
5
45°
36°
6
47°
28°
7
39°
23°
8
38°
26°
9
45°
24°
10
49°
39°
11
52°
35°
12
50°
28°
13
51°
40°
14
60°
41°
15
59°
45°
16
46°
40°
17
67°
40°
18
53°
37°
19
46°
34°
20
53°
29°
21
42°
34°
22
43°
40°
23
46°
37°
24
52°
36°
25
49°
36°
26
50°
38°
27
49°
37°
28
51°
41°
29
49°
40°
30
52°
41°
1
55°
40°
2
54°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Deer Isle
Deer Isle's April 2026 forecast shows daily high temperatures ranging from 42° to 55°, with overnight lows between 29° and 41°. The average high for April is 50° with an average low of 38°. 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 Deer Isle. See also: May | June | July.
