S
M
T
W
T
F
S
26
86°
65°
27
82°
60°
28
79°
53°
29
85°
51°
30
86°
63°
31
70°
62°
1
80°
57°
2
79°
55°
3
84°
65°
4
75°
47°
5
76°
53°
6
82°
56°
7
83°
58°
8
80°
61°
9
75°
59°
10
79°
60°
11
76°
55°
12
75°
55°
13
73°
54°
14
76°
52°
15
75°
53°
16
74°
56°
17
75°
57°
18
77°
57°
19
74°
56°
20
77°
57°
21
78°
58°
22
78°
57°
23
77°
57°
24
77°
56°
25
75°
56°
26
72°
55°
27
68°
55°
28
73°
54°
29
76°
55°
30
77°
56°
31
77°
55°
1
75°
54°
2
73°
54°
3
76°
56°
4
77°
55°
5
76°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mercer
Mercer's August 2026 forecast shows daily high temperatures ranging from 68° to 84°, with overnight lows between 47° and 65°. The average high for August is 76° with an average low of 56°. 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 Mercer. See also: September | October | November.
