S
M
T
W
T
F
S
30
86°
71°
31
91°
73°
1
93°
74°
2
93°
73°
3
92°
75°
4
90°
74°
5
90°
73°
6
92°
73°
7
90°
72°
8
90°
72°
9
86°
72°
10
88°
73°
11
87°
72°
12
87°
73°
13
88°
72°
14
87°
71°
15
88°
69°
16
89°
70°
17
86°
69°
18
88°
68°
19
87°
69°
20
85°
68°
21
89°
72°
22
88°
71°
23
89°
70°
24
88°
71°
25
88°
71°
26
87°
70°
27
88°
70°
28
85°
69°
29
86°
70°
30
87°
70°
1
87°
69°
2
85°
67°
3
80°
65°
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 80° to 90°, with overnight lows between 65° and 73°. The average high for September is 87° with an average low of 70°. 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.
