S
M
T
W
T
F
S
26
92°
76°
27
91°
75°
28
91°
75°
29
93°
76°
30
91°
77°
31
91°
76°
1
90°
76°
2
90°
76°
3
93°
76°
4
92°
77°
5
91°
75°
6
92°
76°
7
93°
76°
8
94°
75°
9
88°
75°
10
88°
74°
11
89°
76°
12
89°
76°
13
90°
75°
14
91°
76°
15
92°
75°
16
92°
76°
17
93°
77°
18
94°
76°
19
93°
76°
20
90°
74°
21
92°
71°
22
90°
71°
23
89°
73°
24
91°
72°
25
90°
74°
26
91°
73°
27
91°
75°
28
93°
75°
29
91°
74°
30
90°
73°
31
90°
73°
1
91°
72°
2
89°
73°
3
90°
73°
4
89°
74°
5
89°
73°
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 88° to 94°, with overnight lows between 71° and 77°. The average high for August is 91° with an average low of 75°. 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.
