S
M
T
W
T
F
S
27
63°
45°
28
73°
44°
29
75°
43°
30
70°
41°
1
76°
38°
2
67°
42°
3
73°
42°
4
73°
44°
5
72°
35°
6
73°
32°
7
60°
31°
8
58°
32°
9
59°
28°
10
58°
26°
11
54°
27°
12
53°
30°
13
57°
35°
14
62°
30°
15
64°
38°
16
61°
38°
17
66°
29°
18
59°
31°
19
58°
33°
20
64°
37°
21
64°
38°
22
66°
29°
23
59°
26°
24
53°
31°
25
Hist. Avg.
56°
28°
26
Hist. Avg.
55°
28°
27
Hist. Avg.
55°
27°
28
Hist. Avg.
54°
27°
29
Hist. Avg.
54°
27°
30
Hist. Avg.
54°
27°
31
Hist. Avg.
53°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Casper
Casper's October 2026 forecast shows daily high temperatures ranging from 53° to 76°, with overnight lows between 26° and 45°. The average high for October is 64° with an average low of 35°. 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 Casper. See also: November | December | January.