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
N/A
10
76°
50°
11
75°
58°
12
84°
63°
13
79°
65°
14
84°
65°
15
78°
58°
16
80°
57°
17
73°
51°
18
68°
48°
19
67°
49°
20
72°
54°
21
74°
58°
22
78°
58°
23
69°
46°
24
72°
53°
25
74°
51°
26
67°
46°
27
65°
46°
28
68°
51°
29
74°
54°
30
72°
55°
1
75°
53°
2
66°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Helena
Helena's April 2026 forecast shows daily high temperatures ranging from 65° to 84°, with overnight lows between 46° and 65°. The average high for April is 73° with an average low of 54°. 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.