S
M
T
W
T
F
S
29
64°
28°
30
75°
50°
31
82°
58°
1
86°
62°
2
86°
61°
3
83°
61°
4
84°
61°
5
71°
53°
6
65°
42°
7
66°
38°
8
61°
35°
9
67°
31°
10
79°
32°
11
83°
44°
12
80°
59°
13
85°
58°
14
91°
61°
15
93°
62°
16
91°
64°
17
89°
57°
18
91°
62°
19
85°
47°
20
68°
41°
21
70°
47°
22
78°
52°
23
80°
53°
24
77°
53°
25
78°
46°
26
68°
48°
27
69°
44°
28
70°
50°
29
74°
52°
30
77°
52°
1
70°
48°
2
70°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in South Boston
South Boston's April 2026 forecast shows daily high temperatures ranging from 68° to 93°, with overnight lows between 41° and 64°. The average high for April is 79° with an average low of 53°. 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 South Boston. See also: May | June | July.
