S
M
T
W
T
F
S
28
Hist. Avg.
44°
26°
29
Hist. Avg.
44°
26°
30
Hist. Avg.
45°
27°
31
Hist. Avg.
45°
27°
1
Hist. Avg.
45°
27°
2
Hist. Avg.
46°
28°
3
Hist. Avg.
46°
28°
4
Hist. Avg.
46°
28°
5
Hist. Avg.
47°
29°
6
Hist. Avg.
47°
29°
7
Hist. Avg.
48°
29°
8
Hist. Avg.
48°
30°
9
Hist. Avg.
49°
30°
10
Hist. Avg.
49°
30°
11
Hist. Avg.
50°
30°
12
Hist. Avg.
50°
31°
13
Hist. Avg.
50°
31°
14
Hist. Avg.
51°
31°
15
Hist. Avg.
51°
32°
16
Hist. Avg.
52°
32°
17
Hist. Avg.
52°
32°
18
Hist. Avg.
53°
32°
19
Hist. Avg.
53°
33°
20
Hist. Avg.
54°
33°
21
Hist. Avg.
54°
33°
22
Hist. Avg.
54°
34°
23
Hist. Avg.
55°
34°
24
Hist. Avg.
55°
34°
25
Hist. Avg.
56°
35°
26
Hist. Avg.
56°
35°
27
Hist. Avg.
56°
35°
28
Hist. Avg.
57°
36°
29
Hist. Avg.
57°
36°
30
Hist. Avg.
58°
36°
1
Hist. Avg.
58°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Southwest Harbor
Southwest Harbor's April 2027 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for April is ° with an average low of °. 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 Southwest Harbor. See also: May | June | July.
