S
M
T
W
T
F
S
27
70°
52°
28
73°
48°
29
69°
50°
30
66°
53°
1
70°
43°
2
70°
41°
3
61°
40°
4
57°
38°
5
56°
45°
6
57°
41°
7
59°
43°
8
56°
39°
9
66°
37°
10
62°
39°
11
Hist. Avg.
62°
39°
12
Hist. Avg.
62°
39°
13
Hist. Avg.
61°
39°
14
Hist. Avg.
61°
38°
15
Hist. Avg.
60°
38°
16
Hist. Avg.
60°
38°
17
Hist. Avg.
60°
37°
18
Hist. Avg.
59°
37°
19
Hist. Avg.
59°
37°
20
Hist. Avg.
58°
37°
21
Hist. Avg.
58°
36°
22
Hist. Avg.
57°
36°
23
Hist. Avg.
57°
36°
24
Hist. Avg.
56°
36°
25
Hist. Avg.
56°
35°
26
Hist. Avg.
56°
35°
27
Hist. Avg.
55°
35°
28
Hist. Avg.
55°
34°
29
Hist. Avg.
54°
34°
30
Hist. Avg.
54°
34°
31
Hist. Avg.
53°
34°
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 56° to 73°, with overnight lows between 37° and 53°. The average high for October is 64° with an average low of 44°. 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.
