S
M
T
W
T
F
S
26
89°
69°
27
88°
67°
28
92°
71°
29
91°
71°
30
92°
72°
31
92°
71°
1
91°
72°
2
93°
72°
3
93°
71°
4
94°
71°
5
92°
70°
6
92°
72°
7
93°
71°
8
92°
72°
9
93°
70°
10
92°
70°
11
90°
69°
12
91°
70°
13
91°
69°
14
90°
68°
15
84°
62°
16
83°
62°
17
84°
64°
18
86°
66°
19
87°
67°
20
90°
68°
21
90°
69°
22
89°
68°
23
87°
67°
24
90°
67°
25
90°
67°
26
84°
65°
27
83°
66°
28
87°
60°
29
83°
59°
30
82°
59°
31
82°
66°
1
83°
63°
2
81°
57°
3
80°
55°
4
78°
56°
5
79°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Diamond City
Diamond City's August 2026 forecast shows daily high temperatures ranging from 78° to 94°, with overnight lows between 55° and 72°. The average high for August is 88° with an average low of 67°. 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 City. See also: September | October | November.
