S
M
T
W
T
F
S
27
65°
51°
28
73°
58°
29
79°
51°
30
82°
49°
1
63°
47°
2
77°
47°
3
74°
47°
4
81°
43°
5
93°
48°
6
86°
51°
7
83°
46°
8
81°
45°
9
92°
47°
10
92°
56°
11
60°
47°
12
59°
41°
13
55°
35°
14
60°
41°
15
54°
39°
16
66°
30°
17
83°
37°
18
67°
39°
19
69°
37°
20
74°
40°
21
73°
44°
22
82°
49°
23
84°
47°
24
73°
37°
25
44°
32°
26
38°
31°
27
64°
31°
28
61°
39°
29
61°
34°
30
57°
33°
31
65°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Rapid City
Rapid City's October 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for October is ° with an average low of °. 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 Rapid City. See also: November | December | January.
