S
M
T
W
T
F
S
29
41°
19°
30
42°
29°
31
36°
27°
1
27°
18°
2
32°
27°
3
34°
28°
4
34°
29°
5
38°
27°
6
33°
8°
7
38°
1°
8
46°
34°
9
40°
29°
10
43°
30°
11
50°
37°
12
56°
47°
13
52°
29°
14
32°
24°
15
38°
26°
16
52°
36°
17
51°
37°
18
51°
36°
19
48°
40°
20
52°
36°
21
51°
45°
22
46°
27°
23
43°
35°
24
42°
35°
25
43°
34°
26
43°
31°
27
44°
31°
28
46°
39°
29
46°
40°
30
49°
40°
1
51°
36°
2
47°
34°
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 32° to 56°, with overnight lows between 24° and 47°. The average high for April is 46° with an average low of 35°. 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.