S
M
T
W
T
F
S
27
74°
53°
28
70°
53°
29
74°
54°
30
75°
47°
1
74°
40°
2
70°
41°
3
60°
38°
4
60°
44°
5
64°
37°
6
58°
35°
7
56°
35°
8
54°
34°
9
53°
32°
10
58°
45°
11
68°
47°
12
66°
48°
13
Hist. Avg.
62°
35°
14
Hist. Avg.
61°
34°
15
Hist. Avg.
61°
34°
16
Hist. Avg.
60°
34°
17
Hist. Avg.
60°
33°
18
Hist. Avg.
59°
33°
19
Hist. Avg.
59°
32°
20
Hist. Avg.
58°
32°
21
Hist. Avg.
58°
32°
22
Hist. Avg.
57°
31°
23
Hist. Avg.
57°
31°
24
Hist. Avg.
56°
30°
25
Hist. Avg.
56°
30°
26
Hist. Avg.
56°
30°
27
Hist. Avg.
55°
29°
28
Hist. Avg.
55°
29°
29
Hist. Avg.
54°
28°
30
Hist. Avg.
54°
28°
31
Hist. Avg.
54°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Rapid City
Rapid City's October 2026 forecast shows daily high temperatures ranging from 53° to 75°, with overnight lows between 32° and 54°. The average high for October is 65° with an average low of 43°. 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.
