S
M
T
W
T
F
S
26
84°
62°
27
84°
62°
28
82°
61°
29
80°
57°
30
78°
54°
31
76°
54°
1
75°
53°
2
76°
54°
3
79°
60°
4
78°
58°
5
78°
60°
6
79°
61°
7
81°
60°
8
78°
58°
9
78°
57°
10
79°
55°
11
81°
58°
12
83°
61°
13
84°
60°
14
85°
61°
15
84°
60°
16
84°
61°
17
87°
58°
18
80°
53°
19
78°
51°
20
76°
51°
21
77°
52°
22
77°
51°
23
78°
52°
24
81°
52°
25
83°
53°
26
83°
58°
27
84°
55°
28
82°
51°
29
76°
51°
30
76°
52°
31
80°
55°
1
82°
50°
2
76°
49°
3
75°
51°
4
79°
57°
5
80°
57°
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 87°, with overnight lows between 49° and 62°. The average high for August is 80° 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.
