S
M
T
W
T
F
S
30
78°
61°
31
80°
64°
1
83°
64°
2
83°
62°
3
82°
59°
4
83°
64°
5
82°
62°
6
81°
59°
7
76°
61°
8
74°
62°
9
79°
55°
10
78°
54°
11
75°
62°
12
77°
57°
13
81°
61°
14
77°
60°
15
74°
61°
16
79°
60°
17
Hist. Avg.
77°
64°
18
Hist. Avg.
76°
64°
19
Hist. Avg.
76°
63°
20
Hist. Avg.
76°
63°
21
Hist. Avg.
75°
63°
22
Hist. Avg.
75°
62°
23
Hist. Avg.
75°
62°
24
Hist. Avg.
74°
62°
25
Hist. Avg.
74°
61°
26
Hist. Avg.
74°
61°
27
Hist. Avg.
73°
60°
28
Hist. Avg.
73°
60°
29
Hist. Avg.
72°
60°
30
Hist. Avg.
72°
59°
1
Hist. Avg.
72°
59°
2
Hist. Avg.
71°
58°
3
Hist. Avg.
71°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Riverdale
Riverdale's September 2026 forecast shows daily high temperatures ranging from 74° to 83°, with overnight lows between 54° and 64°. The average high for September is 79° with an average low of 60°. 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 Riverdale. See also: October | November | December.
