S
M
T
W
T
F
S
30
71°
49°
31
82°
43°
1
77°
55°
2
68°
49°
3
64°
51°
4
64°
48°
5
73°
44°
6
75°
45°
7
59°
51°
8
67°
50°
9
77°
44°
10
79°
54°
11
71°
48°
12
72°
52°
13
61°
48°
14
61°
46°
15
62°
43°
16
76°
48°
17
81°
50°
18
73°
50°
19
77°
49°
20
75°
48°
21
77°
47°
22
71°
50°
23
72°
48°
24
68°
49°
25
64°
47°
26
65°
48°
27
62°
47°
28
65°
38°
29
58°
37°
30
59°
36°
1
57°
32°
2
60°
36°
3
55°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Wallace
Wallace's September 2026 forecast shows daily high temperatures ranging from 55° to 81°, with overnight lows between 31° and 50°. The average high for September is 67° 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 September weather will actually feel in Wallace. See also: October | November | December.
