S
M
T
W
T
F
S
26
31°
13°
27
47°
9°
28
58°
18°
29
63°
22°
30
72°
24°
1
65°
28°
2
72°
28°
3
69°
32°
4
58°
39°
5
55°
33°
6
73°
28°
7
71°
34°
8
68°
35°
9
69°
40°
10
70°
36°
11
64°
37°
12
71°
27°
13
72°
36°
14
64°
43°
15
62°
30°
16
52°
29°
17
55°
26°
18
58°
24°
19
60°
31°
20
55°
30°
21
66°
28°
22
69°
36°
23
74°
33°
24
70°
37°
25
78°
35°
26
75°
41°
27
78°
51°
28
80°
51°
29
84°
50°
30
64°
45°
31
50°
40°
1
49°
40°
2
55°
39°
3
58°
42°
4
62°
43°
5
70°
42°
6
65°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rocky Mountain House
Rocky Mountain House's May 2026 forecast shows daily high temperatures ranging from 49° to 84°, with overnight lows between 39° and 51°. The average high for May is 64° with an average low of 43°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Rocky Mountain House. See also: June | July | August.
