S
M
T
W
T
F
S
26
77°
58°
27
85°
62°
28
88°
59°
29
88°
57°
30
80°
50°
31
82°
51°
1
78°
50°
2
77°
51°
3
79°
52°
4
78°
53°
5
81°
54°
6
83°
55°
7
85°
60°
8
86°
61°
9
87°
60°
10
88°
62°
11
87°
60°
12
88°
51°
13
78°
50°
14
76°
49°
15
76°
51°
16
78°
51°
17
76°
52°
18
77°
56°
19
81°
59°
20
85°
60°
21
88°
61°
22
87°
58°
23
86°
49°
24
81°
48°
25
74°
49°
26
74°
51°
27
72°
56°
28
73°
57°
29
74°
53°
30
75°
51°
31
80°
48°
1
73°
51°
2
81°
52°
3
79°
54°
4
80°
54°
5
80°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Butte
Butte's August 2026 forecast shows daily high temperatures ranging from 72° to 88°, with overnight lows between 48° and 62°. The average high for August is 81° 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 Butte. See also: September | October | November.
