S
M
T
W
T
F
S
26
86°
68°
27
84°
68°
28
81°
65°
29
81°
67°
30
83°
68°
31
87°
69°
1
84°
68°
2
83°
67°
3
89°
68°
4
88°
65°
5
82°
64°
6
84°
63°
7
82°
61°
8
81°
62°
9
81°
60°
10
82°
60°
11
83°
67°
12
88°
68°
13
86°
63°
14
87°
60°
15
82°
62°
16
82°
66°
17
83°
60°
18
81°
60°
19
81°
61°
20
83°
60°
21
85°
65°
22
87°
65°
23
87°
64°
24
88°
65°
25
87°
64°
26
88°
65°
27
87°
63°
28
86°
64°
29
86°
64°
30
85°
57°
31
81°
55°
1
79°
54°
2
78°
55°
3
78°
56°
4
79°
55°
5
77°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Upper Arlington
Upper Arlington's August 2026 forecast shows daily high temperatures ranging from 77° to 89°, with overnight lows between 54° and 69°. The average high for August is 84° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Upper Arlington. See also: September | October | November.