S
M
T
W
T
F
S
26
90°
58°
27
91°
53°
28
90°
55°
29
91°
57°
30
90°
55°
31
89°
51°
1
88°
51°
2
87°
53°
3
86°
55°
4
92°
59°
5
93°
58°
6
92°
58°
7
93°
56°
8
92°
54°
9
92°
55°
10
90°
48°
11
89°
47°
12
80°
48°
13
80°
53°
14
85°
51°
15
84°
51°
16
88°
52°
17
88°
54°
18
89°
53°
19
88°
50°
20
87°
53°
21
88°
46°
22
79°
42°
23
76°
43°
24
77°
48°
25
79°
42°
26
76°
41°
27
74°
41°
28
74°
40°
29
75°
41°
30
74°
42°
31
77°
45°
1
78°
49°
2
79°
50°
3
84°
48°
4
84°
49°
5
85°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Diamond Lake
Diamond Lake's August 2026 forecast shows daily high temperatures ranging from 74° to 93°, with overnight lows between 40° and 59°. The average high for August is 85° with an average low of 50°. 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 Diamond Lake. See also: September | October | November.
