S
M
T
W
T
F
S
29
51°
29°
30
67°
40°
31
56°
40°
1
71°
40°
2
42°
37°
3
68°
38°
4
62°
38°
5
57°
40°
6
51°
38°
7
46°
25°
8
44°
31°
9
52°
44°
10
67°
54°
11
66°
44°
12
56°
49°
13
74°
58°
14
63°
45°
15
53°
48°
16
58°
47°
17
61°
48°
18
60°
42°
19
53°
46°
20
54°
47°
21
62°
47°
22
60°
46°
23
55°
48°
24
57°
48°
25
63°
44°
26
55°
43°
27
55°
43°
28
57°
46°
29
57°
43°
30
56°
42°
1
57°
47°
2
58°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Boston
Boston's April 2026 forecast shows daily high temperatures ranging from 44° to 74°, with overnight lows between 25° and 58°. The average high for April is 57° with an average low of 45°. 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 Boston. See also: May | June | July.