S
M
T
W
T
F
S
26
84°
54°
27
86°
64°
28
78°
68°
29
78°
65°
30
80°
64°
31
83°
66°
1
85°
68°
2
85°
66°
3
86°
67°
4
88°
66°
5
87°
67°
6
87°
66°
7
86°
67°
8
86°
68°
9
88°
67°
10
84°
64°
11
85°
67°
12
82°
68°
13
83°
67°
14
86°
67°
15
84°
64°
16
82°
65°
17
82°
63°
18
81°
62°
19
84°
66°
20
83°
65°
21
81°
64°
22
81°
65°
23
82°
66°
24
87°
59°
25
79°
58°
26
79°
65°
27
85°
66°
28
87°
66°
29
87°
65°
30
86°
61°
31
81°
57°
1
78°
57°
2
78°
58°
3
77°
56°
4
78°
57°
5
79°
64°
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 77° to 88°, with overnight lows between 56° and 68°. The average high for August is 83° with an average low of 64°. 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.
