S
M
T
W
T
F
S
27
N/A
28
69°
36°
29
73°
42°
30
74°
37°
1
77°
43°
2
77°
44°
3
77°
41°
4
78°
41°
5
74°
43°
6
73°
41°
7
76°
40°
8
78°
42°
9
70°
38°
10
69°
38°
11
60°
33°
12
67°
39°
13
67°
39°
14
66°
38°
15
66°
39°
16
65°
39°
17
63°
38°
18
61°
38°
19
58°
36°
20
60°
36°
21
61°
35°
22
61°
36°
23
60°
36°
24
60°
35°
25
59°
34°
26
59°
34°
27
58°
33°
28
56°
34°
29
52°
28°
30
43°
24°
31
42°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Challis
Challis's October 2026 forecast shows daily high temperatures ranging from 42° to 78°, with overnight lows between 24° and 44°. The average high for October is 65° with an average low of 37°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Challis. See also: November | December | January.