S
M
T
W
T
F
S
29
66°
43°
30
68°
32°
31
36°
28°
1
43°
28°
2
46°
30°
3
32°
25°
4
50°
30°
5
57°
37°
6
45°
27°
7
70°
38°
8
55°
26°
9
52°
28°
10
67°
41°
11
80°
56°
12
75°
46°
13
55°
29°
14
43°
28°
15
57°
37°
16
69°
43°
17
65°
39°
18
67°
44°
19
64°
40°
20
60°
34°
21
50°
33°
22
50°
31°
23
52°
33°
24
53°
36°
25
65°
41°
26
64°
40°
27
65°
41°
28
66°
43°
29
66°
43°
30
63°
42°
1
64°
44°
2
67°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Belle Fourche
Belle Fourche's April 2026 forecast shows daily high temperatures ranging from 43° to 80°, with overnight lows between 26° and 56°. The average high for April is 62° with an average low of 38°. 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 Belle Fourche. See also: May | June | July.