S
M
T
W
T
F
S
26
95°
75°
27
97°
77°
28
97°
77°
29
97°
77°
30
97°
75°
31
95°
75°
1
95°
72°
2
90°
69°
3
90°
71°
4
93°
72°
5
92°
71°
6
91°
72°
7
94°
71°
8
93°
72°
9
92°
71°
10
91°
72°
11
92°
71°
12
88°
72°
13
91°
71°
14
94°
73°
15
88°
69°
16
89°
68°
17
92°
74°
18
91°
73°
19
93°
74°
20
93°
74°
21
92°
73°
22
92°
73°
23
91°
72°
24
92°
73°
25
92°
74°
26
91°
74°
27
92°
72°
28
92°
73°
29
93°
72°
30
92°
73°
31
90°
72°
1
89°
73°
2
92°
73°
3
92°
72°
4
91°
72°
5
90°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in McComb
McComb's August 2026 forecast shows daily high temperatures ranging from 88° to 95°, with overnight lows between 68° and 74°. The average high for August is 92° with an average low of 72°. 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 McComb. See also: September | October | November.