S
M
T
W
T
F
S
26
90°
63°
27
97°
67°
28
98°
66°
29
98°
68°
30
97°
67°
31
98°
67°
1
98°
66°
2
97°
67°
3
98°
68°
4
97°
67°
5
96°
67°
6
97°
66°
7
97°
67°
8
96°
67°
9
97°
68°
10
90°
53°
11
86°
54°
12
85°
54°
13
87°
55°
14
91°
56°
15
89°
55°
16
89°
57°
17
90°
61°
18
94°
61°
19
96°
65°
20
97°
63°
21
93°
63°
22
93°
61°
23
92°
58°
24
91°
59°
25
90°
57°
26
89°
59°
27
89°
62°
28
87°
58°
29
85°
62°
30
87°
58°
31
82°
53°
1
81°
57°
2
86°
56°
3
85°
52°
4
79°
53°
5
79°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Meridian
Meridian's August 2026 forecast shows daily high temperatures ranging from 79° to 98°, with overnight lows between 52° and 68°. The average high for August is 91° with an average low of 61°. 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 Meridian. See also: September | October | November.