S
M
T
W
T
F
S
26
52°
27°
27
50°
31°
28
54°
23°
29
59°
33°
30
62°
30°
1
70°
29°
2
73°
34°
3
74°
37°
4
75°
39°
5
70°
43°
6
72°
34°
7
75°
47°
8
75°
40°
9
73°
35°
10
82°
37°
11
83°
41°
12
86°
41°
13
84°
47°
14
71°
37°
15
68°
35°
16
59°
34°
17
50°
26°
18
57°
31°
19
63°
28°
20
65°
34°
21
64°
39°
22
69°
35°
23
75°
43°
24
81°
43°
25
77°
48°
26
72°
41°
27
68°
41°
28
76°
46°
29
70°
46°
30
75°
43°
31
76°
42°
1
82°
47°
2
83°
51°
3
84°
52°
4
83°
50°
5
72°
44°
6
74°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Challis
Challis's May 2026 forecast shows daily high temperatures ranging from 68° to 84°, with overnight lows between 41° and 52°. The average high for May is 77° with an average low of 45°. 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 Challis. See also: June | July | August.
