S
M
T
W
T
F
S
26
91°
60°
27
88°
60°
28
90°
59°
29
90°
60°
30
89°
61°
31
91°
60°
1
90°
60°
2
91°
59°
3
91°
60°
4
90°
60°
5
90°
59°
6
84°
58°
7
87°
59°
8
90°
58°
9
89°
59°
10
90°
57°
11
91°
49°
12
82°
53°
13
83°
52°
14
89°
55°
15
90°
52°
16
87°
49°
17
84°
46°
18
79°
46°
19
79°
48°
20
81°
53°
21
87°
54°
22
85°
56°
23
88°
52°
24
88°
47°
25
79°
46°
26
76°
47°
27
78°
54°
28
84°
56°
29
87°
56°
30
86°
47°
31
85°
44°
1
75°
48°
2
74°
52°
3
82°
50°
4
81°
43°
5
73°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Gillette South
Gillette South's August 2026 forecast shows daily high temperatures ranging from 73° to 91°, with overnight lows between 43° and 61°. The average high for August is 85° with an average low of 54°. 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 Gillette South. See also: September | October | November.
