S
M
T
W
T
F
S
26
45°
21°
27
35°
26°
28
53°
19°
29
55°
27°
30
58°
22°
1
66°
31°
2
72°
31°
3
71°
39°
4
55°
38°
5
49°
22°
6
58°
16°
7
61°
31°
8
70°
34°
9
61°
38°
10
73°
32°
11
78°
42°
12
73°
38°
13
95°
35°
14
73°
38°
15
69°
34°
16
73°
32°
17
50°
37°
18
42°
28°
19
61°
21°
20
69°
30°
21
45°
37°
22
64°
33°
23
74°
37°
24
83°
38°
25
87°
45°
26
86°
44°
27
85°
58°
28
85°
61°
29
80°
54°
30
70°
52°
31
62°
43°
1
76°
43°
2
82°
46°
3
78°
47°
4
80°
47°
5
82°
48°
6
86°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Big Horn
Big Horn's May 2026 forecast shows daily high temperatures ranging from 62° to 86°, with overnight lows between 43° and 54°. The average high for May is 77° with an average low of 48°. 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 Big Horn. See also: June | July | August.
