S
M
T
W
T
F
S
29
66°
30°
30
53°
30°
31
39°
27°
1
32°
27°
2
34°
30°
3
31°
28°
4
42°
30°
5
45°
21°
6
32°
18°
7
48°
21°
8
44°
32°
9
45°
26°
10
61°
23°
11
61°
38°
12
77°
43°
13
45°
38°
14
63°
37°
15
72°
35°
16
66°
31°
17
33°
25°
18
48°
19°
19
49°
21°
20
80°
31°
21
79°
32°
22
80°
49°
23
61°
29°
24
54°
25°
25
48°
27°
26
40°
30°
27
44°
25°
28
53°
32°
29
51°
31°
30
52°
30°
1
57°
32°
2
58°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Bismarck
Bismarck's April 2026 forecast shows daily high temperatures ranging from 40° to 80°, with overnight lows between 25° and 49°. The average high for April is 54° with an average low of 31°. 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 Bismarck. See also: May | June | July.
