S
M
T
W
T
F
S
26
89°
62°
27
84°
60°
28
89°
62°
29
91°
61°
30
81°
56°
31
80°
53°
1
82°
59°
2
90°
62°
3
86°
59°
4
91°
53°
5
87°
59°
6
91°
60°
7
94°
61°
8
92°
60°
9
91°
55°
10
90°
50°
11
82°
49°
12
80°
50°
13
80°
49°
14
81°
51°
15
82°
47°
16
79°
48°
17
80°
50°
18
81°
55°
19
83°
57°
20
89°
57°
21
89°
55°
22
88°
53°
23
87°
47°
24
80°
47°
25
81°
46°
26
80°
48°
27
79°
53°
28
84°
48°
29
78°
46°
30
77°
52°
31
80°
54°
1
85°
54°
2
83°
50°
3
81°
45°
4
75°
45°
5
75°
48°
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 94°, with overnight lows between 45° and 62°. The average high for August is 84° with an average low of 53°. 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.
