S
M
T
W
T
F
S
26
95°
71°
27
95°
76°
28
92°
73°
29
90°
71°
30
80°
71°
31
74°
63°
1
84°
60°
2
86°
61°
3
88°
64°
4
71°
54°
5
80°
49°
6
83°
55°
7
79°
58°
8
82°
54°
9
87°
67°
10
85°
66°
11
87°
71°
12
87°
70°
13
81°
68°
14
78°
67°
15
81°
65°
16
80°
61°
17
87°
58°
18
82°
64°
19
81°
63°
20
88°
61°
21
85°
61°
22
83°
59°
23
81°
59°
24
82°
65°
25
88°
62°
26
81°
56°
27
84°
53°
28
88°
62°
29
92°
69°
30
97°
71°
31
90°
63°
1
88°
64°
2
87°
67°
3
94°
69°
4
96°
71°
5
94°
68°
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 87° to 96°, with overnight lows between 64° and 71°. The average high for August is 92° with an average low of 68°. 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.
