S
M
T
W
T
F
S
26
102°
64°
27
91°
69°
28
96°
71°
29
97°
67°
30
81°
54°
31
88°
53°
1
99°
64°
2
99°
67°
3
79°
41°
4
75°
40°
5
87°
52°
6
94°
50°
7
94°
61°
8
99°
59°
9
96°
59°
10
98°
59°
11
93°
61°
12
89°
60°
13
82°
58°
14
75°
52°
15
82°
61°
16
83°
57°
17
87°
60°
18
86°
57°
19
87°
56°
20
95°
62°
21
85°
58°
22
79°
57°
23
83°
57°
24
87°
54°
25
77°
48°
26
77°
50°
27
85°
56°
28
88°
57°
29
87°
57°
30
88°
58°
31
87°
57°
1
86°
56°
2
87°
56°
3
82°
55°
4
77°
54°
5
84°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Gillette
Gillette's August 2026 forecast shows daily high temperatures ranging from 75° to 99°, with overnight lows between 48° and 62°. The average high for August is 86° 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 Gillette. See also: September | October | November.
