S
M
T
W
T
F
S
30
85°
66°
31
86°
67°
1
89°
69°
2
89°
69°
3
88°
70°
4
88°
65°
5
84°
64°
6
84°
64°
7
85°
66°
8
85°
68°
9
87°
67°
10
85°
68°
11
87°
67°
12
88°
68°
13
88°
67°
14
87°
67°
15
88°
66°
16
87°
67°
17
87°
67°
18
86°
65°
19
86°
64°
20
85°
60°
21
82°
64°
22
81°
64°
23
80°
63°
24
85°
58°
25
83°
57°
26
79°
63°
27
82°
62°
28
79°
59°
29
83°
61°
30
83°
61°
1
82°
60°
2
82°
59°
3
84°
60°
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 79° to 89°, with overnight lows between 57° and 70°. The average high for September is 85° with an average low of 64°. 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.
