S
M
T
W
T
F
S
29
33°
27°
30
30°
20°
31
35°
18°
1
38°
28°
2
29°
24°
3
30°
26°
4
46°
27°
5
56°
37°
6
57°
42°
7
55°
35°
8
59°
38°
9
63°
41°
10
66°
47°
11
62°
45°
12
51°
33°
13
49°
35°
14
48°
34°
15
50°
35°
16
50°
34°
17
54°
39°
18
55°
35°
19
51°
34°
20
55°
33°
21
49°
29°
22
50°
29°
23
48°
30°
24
51°
32°
25
50°
30°
26
55°
32°
27
60°
33°
28
61°
36°
29
62°
39°
30
62°
39°
1
63°
40°
2
64°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Mullan
Mullan's April 2026 forecast shows daily high temperatures ranging from 48° to 66°, with overnight lows between 29° and 47°. The average high for April is 56° with an average low of 36°. 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 Mullan. See also: May | June | July.