S
M
T
W
T
F
S
26
90°
49°
27
88°
50°
28
89°
50°
29
88°
47°
30
89°
52°
31
90°
49°
1
97°
48°
2
81°
40°
3
68°
39°
4
75°
43°
5
81°
44°
6
84°
45°
7
82°
44°
8
84°
45°
9
80°
44°
10
78°
44°
11
82°
47°
12
79°
47°
13
79°
45°
14
78°
43°
15
82°
49°
16
72°
45°
17
72°
43°
18
77°
48°
19
80°
48°
20
78°
46°
21
73°
43°
22
74°
45°
23
75°
46°
24
75°
42°
25
68°
38°
26
73°
44°
27
78°
47°
28
77°
47°
29
78°
45°
30
72°
46°
31
69°
46°
1
73°
45°
2
66°
41°
3
66°
39°
4
69°
44°
5
75°
44°
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 66° to 97°, with overnight lows between 38° and 49°. The average high for August is 76° with an average low of 44°. 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.
