S
M
T
W
T
F
S
26
100°
68°
27
95°
70°
28
93°
64°
29
99°
63°
30
84°
57°
31
86°
55°
1
92°
73°
2
90°
59°
3
75°
44°
4
69°
51°
5
81°
56°
6
89°
58°
7
88°
60°
8
88°
57°
9
84°
58°
10
83°
59°
11
83°
58°
12
80°
59°
13
80°
55°
14
82°
54°
15
87°
60°
16
87°
59°
17
77°
59°
18
80°
58°
19
81°
59°
20
81°
59°
21
85°
58°
22
78°
57°
23
80°
58°
24
84°
56°
25
76°
50°
26
74°
50°
27
80°
56°
28
85°
58°
29
85°
58°
30
86°
59°
31
85°
58°
1
84°
57°
2
85°
57°
3
83°
56°
4
77°
55°
5
82°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Deadwood
Deadwood's August 2026 forecast shows daily high temperatures ranging from 69° to 92°, with overnight lows between 44° and 73°. The average high for August is 82° with an average low of 57°. 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 Deadwood. See also: September | October | November.
