S
M
T
W
T
F
S
26
81°
61°
27
83°
61°
28
78°
60°
29
78°
60°
30
80°
61°
31
84°
62°
1
83°
61°
2
83°
61°
3
85°
61°
4
86°
60°
5
79°
57°
6
81°
58°
7
79°
54°
8
77°
55°
9
76°
54°
10
77°
54°
11
81°
60°
12
85°
61°
13
81°
57°
14
84°
53°
15
78°
54°
16
79°
60°
17
83°
57°
18
78°
53°
19
78°
53°
20
81°
54°
21
81°
57°
22
85°
59°
23
84°
59°
24
84°
58°
25
85°
58°
26
83°
59°
27
84°
55°
28
83°
59°
29
84°
58°
30
83°
52°
31
77°
49°
1
76°
49°
2
76°
50°
3
75°
49°
4
76°
49°
5
74°
50°
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 86°, with overnight lows between 49° and 62°. The average high for August is 81° 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.
