S
M
T
W
T
F
S
26
88°
67°
27
88°
67°
28
87°
66°
29
89°
67°
30
88°
66°
31
88°
66°
1
83°
63°
2
81°
59°
3
81°
63°
4
82°
65°
5
81°
65°
6
83°
64°
7
85°
64°
8
85°
63°
9
86°
65°
10
87°
65°
11
87°
64°
12
86°
65°
13
88°
64°
14
90°
64°
15
90°
63°
16
85°
63°
17
84°
62°
18
87°
63°
19
86°
57°
20
83°
55°
21
80°
54°
22
79°
55°
23
80°
56°
24
81°
55°
25
80°
61°
26
80°
57°
27
86°
59°
28
86°
61°
29
84°
57°
30
84°
55°
31
79°
54°
1
77°
59°
2
80°
55°
3
78°
54°
4
79°
55°
5
79°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Wallace
Wallace's August 2026 forecast shows daily high temperatures ranging from 77° to 90°, with overnight lows between 54° and 67°. The average high for August is 84° with an average low of 61°. 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 Wallace. See also: September | October | November.