S
M
T
W
T
F
S
30
85°
57°
31
81°
55°
1
79°
54°
2
78°
55°
3
78°
56°
4
79°
55°
5
77°
56°
6
76°
61°
7
78°
60°
8
82°
55°
9
77°
54°
10
76°
54°
11
77°
53°
12
76°
55°
13
75°
56°
14
74°
53°
15
75°
58°
16
75°
53°
17
77°
52°
18
76°
52°
19
80°
55°
20
Hist. Avg.
75°
52°
21
Hist. Avg.
75°
52°
22
Hist. Avg.
74°
51°
23
Hist. Avg.
74°
51°
24
Hist. Avg.
74°
50°
25
Hist. Avg.
73°
50°
26
Hist. Avg.
73°
50°
27
Hist. Avg.
72°
49°
28
Hist. Avg.
72°
49°
29
Hist. Avg.
71°
48°
30
Hist. Avg.
71°
48°
1
Hist. Avg.
70°
48°
2
Hist. Avg.
70°
47°
3
Hist. Avg.
70°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Upper Arlington
Upper Arlington's September 2026 forecast shows daily high temperatures ranging from 74° to 85°, with overnight lows between 52° and 61°. The average high for September is 78° with an average low of 55°. 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.
