S
M
T
W
T
F
S
26
90°
73°
27
90°
73°
28
89°
72°
29
89°
72°
30
88°
68°
31
82°
65°
1
82°
66°
2
83°
66°
3
84°
67°
4
84°
66°
5
85°
66°
6
86°
68°
7
86°
71°
8
85°
71°
9
83°
69°
10
86°
64°
11
85°
65°
12
86°
65°
13
85°
69°
14
86°
70°
15
88°
69°
16
88°
71°
17
89°
70°
18
88°
69°
19
86°
63°
20
83°
63°
21
81°
64°
22
81°
62°
23
82°
62°
24
81°
63°
25
83°
63°
26
86°
62°
27
85°
63°
28
81°
66°
29
81°
64°
30
79°
65°
31
84°
67°
1
85°
61°
2
83°
60°
3
78°
59°
4
79°
61°
5
78°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Marion
Marion's August 2026 forecast shows daily high temperatures ranging from 78° to 90°, with overnight lows between 59° and 73°. The average high for August is 84° with an average low of 66°. 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 Marion. See also: September | October | November.
