S
M
T
W
T
F
S
30
89°
60°
31
82°
59°
1
81°
64°
2
81°
63°
3
85°
59°
4
85°
65°
5
87°
65°
6
88°
58°
7
85°
58°
8
79°
57°
9
79°
57°
10
81°
61°
11
84°
57°
12
82°
57°
13
77°
56°
14
76°
62°
15
81°
63°
16
84°
55°
17
83°
53°
18
74°
52°
19
74°
53°
20
75°
59°
21
73°
58°
22
74°
53°
23
72°
56°
24
72°
54°
25
74°
58°
26
76°
58°
27
78°
52°
28
78°
50°
29
71°
55°
30
70°
56°
1
71°
57°
2
73°
54°
3
75°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in South Riding
South Riding's September 2026 forecast shows daily high temperatures ranging from 70° to 89°, with overnight lows between 48° and 65°. The average high for September is 79° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in South Riding. See also: October | November | December.
