S
M
T
W
T
F
S
26
81°
58°
27
85°
61°
28
82°
68°
29
78°
60°
30
81°
54°
31
86°
53°
1
80°
64°
2
80°
68°
3
79°
56°
4
86°
52°
5
88°
63°
6
86°
69°
7
84°
68°
8
84°
68°
9
84°
65°
10
80°
67°
11
75°
65°
12
81°
63°
13
81°
63°
14
79°
56°
15
77°
60°
16
82°
63°
17
78°
55°
18
79°
57°
19
80°
56°
20
80°
58°
21
78°
57°
22
75°
57°
23
77°
56°
24
76°
55°
25
75°
53°
26
81°
57°
27
83°
59°
28
83°
57°
29
77°
53°
30
74°
51°
31
74°
53°
1
75°
58°
2
74°
58°
3
77°
57°
4
80°
59°
5
80°
59°
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 74° to 83°, with overnight lows between 51° and 65°. The average high for August is 78° with an average low of 58°. 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.
