S
M
T
W
T
F
S
26
87°
64°
27
89°
66°
28
87°
65°
29
86°
65°
30
81°
64°
31
81°
61°
1
82°
63°
2
83°
64°
3
83°
64°
4
84°
65°
5
90°
66°
6
91°
66°
7
92°
65°
8
90°
64°
9
91°
66°
10
92°
66°
11
92°
65°
12
91°
66°
13
91°
65°
14
81°
58°
15
81°
53°
16
82°
54°
17
86°
53°
18
85°
52°
19
81°
53°
20
80°
56°
21
79°
53°
22
82°
52°
23
80°
59°
24
86°
59°
25
87°
58°
26
88°
59°
27
88°
50°
28
79°
48°
29
76°
51°
30
77°
53°
31
76°
53°
1
77°
51°
2
81°
57°
3
84°
51°
4
79°
54°
5
75°
51°
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 75° to 92°, with overnight lows between 48° and 66°. The average high for August is 84° with an average low of 59°. 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.
