Rapid City, SD

Weather Forecast Legend
Low risk of rain/snow.
Medium risk of rain/snow.
High risk of rain/snow.
% Forecast risk of rain/snow.
September 2015 Summary
Avg High Temps 65 to 85 °F
Avg Low Temps 40 to 55 °F
Rain Frequency 2 to 4 days
S M T W T F S
1
17%
2
44%
3
60%
4
31%
5
43%
6
33%
7
49%
8
44%
9
34%
10
26%
11
26%
12
29%
13
43%
14
49%
15
40%
16
20%
17
25%
18
43%
19
25%
20
15%
21
22%
22
08%
23
17%
24
40%
25
40%
26
75%
27
62%
28
40%
29
25%
30
22%
Want more? Check out the detailed forecast.