S
M
T
W
T
F
S
26
89°
60°
27
88°
59°
28
86°
59°
29
84°
57°
30
90°
58°
31
86°
59°
1
84°
54°
2
83°
56°
3
84°
59°
4
86°
58°
5
92°
58°
6
92°
59°
7
Hist. Avg.
87°
58°
8
Hist. Avg.
87°
58°
9
Hist. Avg.
87°
58°
10
Hist. Avg.
87°
57°
11
Hist. Avg.
87°
57°
12
Hist. Avg.
86°
57°
13
Hist. Avg.
86°
57°
14
Hist. Avg.
86°
56°
15
Hist. Avg.
86°
56°
16
Hist. Avg.
86°
56°
17
Hist. Avg.
86°
56°
18
Hist. Avg.
85°
56°
19
Hist. Avg.
85°
55°
20
Hist. Avg.
85°
55°
21
Hist. Avg.
85°
55°
22
Hist. Avg.
84°
54°
23
Hist. Avg.
84°
54°
24
Hist. Avg.
84°
54°
25
Hist. Avg.
84°
54°
26
Hist. Avg.
83°
53°
27
Hist. Avg.
83°
53°
28
Hist. Avg.
83°
53°
29
Hist. Avg.
83°
52°
30
Hist. Avg.
82°
52°
31
Hist. Avg.
82°
52°
1
Hist. Avg.
82°
52°
2
Hist. Avg.
81°
51°
3
Hist. Avg.
81°
51°
4
Hist. Avg.
81°
51°
5
Hist. Avg.
80°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Gillette
Gillette's August 2026 forecast shows daily high temperatures ranging from 83° to 92°, with overnight lows between 54° and 60°. The average high for August is 87° with an average low of 58°. 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.