S
M
T
W
T
F
S
26
80°
66°
27
81°
65°
28
80°
66°
29
86°
67°
30
88°
66°
31
83°
63°
1
81°
66°
2
87°
67°
3
79°
57°
4
79°
63°
5
80°
58°
6
85°
57°
7
84°
59°
8
83°
57°
9
84°
62°
10
83°
59°
11
79°
57°
12
84°
54°
13
78°
55°
14
78°
58°
15
77°
59°
16
77°
56°
17
78°
52°
18
78°
55°
19
81°
59°
20
80°
63°
21
82°
64°
22
85°
64°
23
86°
62°
24
86°
53°
25
78°
54°
26
80°
53°
27
79°
56°
28
82°
56°
29
84°
52°
30
76°
53°
31
78°
57°
1
74°
55°
2
76°
59°
3
76°
51°
4
77°
50°
5
74°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Merrill
Merrill's August 2026 forecast shows daily high temperatures ranging from 74° to 88°, with overnight lows between 50° and 67°. The average high for August is 81° with an average low of 58°. 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 Merrill. See also: September | October | November.
