S
M
T
W
T
F
S
26
78°
48°
27
84°
47°
28
84°
48°
29
82°
47°
30
83°
48°
31
83°
47°
1
84°
44°
2
84°
48°
3
83°
47°
4
84°
48°
5
84°
49°
6
83°
43°
7
81°
44°
8
80°
44°
9
78°
43°
10
82°
50°
11
83°
45°
12
82°
39°
13
78°
46°
14
81°
47°
15
80°
47°
16
73°
46°
17
71°
45°
18
74°
47°
19
77°
48°
20
81°
46°
21
73°
42°
22
71°
41°
23
72°
43°
24
72°
41°
25
73°
37°
26
70°
39°
27
70°
37°
28
68°
35°
29
69°
38°
30
70°
36°
31
69°
37°
1
70°
35°
2
68°
41°
3
68°
39°
4
69°
38°
5
65°
35°
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 65° to 84°, with overnight lows between 35° and 50°. The average high for August is 77° with an average low of 43°. 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.
