S
M
T
W
T
F
S
29
73°
37°
30
80°
54°
31
86°
64°
1
71°
60°
2
80°
62°
3
83°
66°
4
74°
47°
5
58°
41°
6
63°
40°
7
55°
43°
8
74°
39°
9
81°
57°
10
80°
53°
11
76°
47°
12
84°
58°
13
82°
71°
14
88°
70°
15
85°
68°
16
82°
62°
17
88°
54°
18
77°
44°
19
66°
37°
20
66°
45°
21
81°
48°
22
82°
62°
23
85°
56°
24
77°
57°
25
80°
53°
26
82°
55°
27
70°
61°
28
70°
62°
29
66°
51°
30
64°
44°
1
61°
47°
2
59°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Helena
Helena's April 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for April is ° with an average low of °. 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 Helena. See also: May | June | July.