S
M
T
W
T
F
S
26
68°
55°
27
69°
54°
28
66°
50°
29
69°
51°
30
70°
52°
31
71°
53°
1
70°
52°
2
65°
53°
3
67°
52°
4
67°
51°
5
64°
53°
6
64°
48°
7
63°
48°
8
63°
50°
9
64°
51°
10
67°
49°
11
64°
47°
12
62°
47°
13
62°
48°
14
63°
46°
15
62°
48°
16
61°
46°
17
61°
51°
18
63°
52°
19
62°
50°
20
61°
48°
21
64°
46°
22
67°
48°
23
65°
49°
24
65°
48°
25
64°
46°
26
65°
45°
27
61°
44°
28
61°
43°
29
64°
41°
30
64°
43°
31
63°
42°
1
63°
42°
2
62°
43°
3
62°
42°
4
61°
46°
5
58°
45°
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 58° to 71°, with overnight lows between 41° and 55°. The average high for August is 64° with an average low of 48°. 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.
