S
M
T
W
T
F
S
30
89°
70°
31
88°
68°
1
83°
69°
2
84°
69°
3
87°
70°
4
84°
70°
5
83°
69°
6
83°
69°
7
88°
68°
8
83°
63°
9
83°
62°
10
82°
65°
11
82°
63°
12
87°
63°
13
86°
67°
14
86°
62°
15
84°
60°
16
79°
61°
17
80°
60°
18
82°
61°
19
85°
60°
20
85°
61°
21
84°
64°
22
85°
64°
23
84°
58°
24
81°
58°
25
83°
57°
26
82°
62°
27
83°
62°
28
83°
61°
29
82°
62°
30
83°
60°
1
78°
61°
2
82°
61°
3
83°
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 78° to 89°, with overnight lows between 57° and 70°. The average high for September is 84° with an average low of 63°. 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.
