S
M
T
W
T
F
S
28
69°
50°
29
69°
48°
30
71°
54°
1
74°
58°
2
78°
58°
3
76°
51°
4
70°
49°
5
70°
53°
6
73°
58°
7
77°
58°
8
71°
57°
9
73°
55°
10
78°
57°
11
73°
54°
12
72°
58°
13
73°
49°
14
73°
50°
15
75°
51°
16
77°
57°
17
74°
58°
18
77°
54°
19
78°
57°
20
81°
53°
21
78°
51°
22
77°
57°
23
80°
55°
24
76°
58°
25
80°
58°
26
74°
57°
27
80°
57°
28
77°
56°
29
75°
58°
30
74°
55°
31
78°
56°
1
79°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Mercer
Mercer's July 2026 forecast shows daily high temperatures ranging from 69° to 81°, with overnight lows between 48° and 58°. The average high for July is 75° with an average low of 55°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Mercer. See also: August | September | October.
