S
M
T
W
T
F
S
27
76°
47°
28
76°
46°
29
71°
45°
30
68°
39°
1
72°
45°
2
73°
44°
3
73°
45°
4
72°
43°
5
70°
45°
6
72°
40°
7
58°
36°
8
57°
37°
9
59°
34°
10
53°
30°
11
54°
28°
12
55°
28°
13
52°
27°
14
54°
35°
15
64°
37°
16
60°
30°
17
52°
27°
18
51°
28°
19
52°
31°
20
60°
37°
21
63°
39°
22
60°
38°
23
54°
28°
24
53°
25°
25
50°
25°
26
49°
31°
27
53°
29°
28
50°
27°
29
50°
24°
30
47°
23°
31
46°
25°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Casper
Casper's October 2026 forecast shows daily high temperatures ranging from 46° to 76°, with overnight lows between 23° and 47°. The average high for October is 59° with an average low of 34°. 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.