S
M
T
W
T
F
S
30
82°
59°
31
79°
69°
1
88°
68°
2
78°
70°
3
90°
71°
4
85°
65°
5
78°
59°
6
76°
57°
7
76°
61°
8
79°
61°
9
81°
64°
10
84°
61°
11
80°
60°
12
76°
62°
13
80°
62°
14
79°
61°
15
75°
56°
16
73°
61°
17
72°
54°
18
71°
52°
19
76°
55°
20
78°
58°
21
77°
58°
22
76°
59°
23
71°
57°
24
74°
55°
25
73°
55°
26
76°
57°
27
76°
56°
28
73°
52°
29
66°
49°
30
68°
52°
1
67°
49°
2
66°
51°
3
64°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Rising Sun
Rising Sun's September 2026 forecast shows daily high temperatures ranging from 64° to 90°, with overnight lows between 48° and 71°. The average high for September is 75° with an average low of 58°. 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 Rising Sun. See also: October | November | December.
