S
M
T
W
T
F
S
30
84°
64°
31
89°
71°
1
92°
75°
2
94°
73°
3
95°
74°
4
84°
70°
5
83°
68°
6
79°
60°
7
81°
58°
8
85°
60°
9
90°
72°
10
83°
67°
11
82°
68°
12
77°
65°
13
85°
58°
14
73°
56°
15
88°
65°
16
89°
67°
17
81°
59°
18
76°
57°
19
72°
54°
20
71°
51°
21
69°
52°
22
75°
53°
23
76°
56°
24
75°
52°
25
74°
57°
26
78°
56°
27
79°
57°
28
78°
56°
29
75°
56°
30
75°
55°
1
73°
53°
2
69°
54°
3
76°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Upper Arlington
Upper Arlington's September 2026 forecast shows daily high temperatures ranging from 69° to 89°, with overnight lows between 51° and 68°. The average high for September is 77° 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 Upper Arlington. See also: October | November | December.
