S
M
T
W
T
F
S
30
84°
55°
31
79°
54°
1
77°
59°
2
80°
55°
3
78°
54°
4
79°
55°
5
79°
59°
6
80°
60°
7
83°
58°
8
80°
55°
9
77°
58°
10
84°
52°
11
77°
51°
12
77°
51°
13
78°
52°
14
77°
57°
15
83°
58°
16
83°
58°
17
82°
57°
18
82°
50°
19
81°
47°
20
74°
49°
21
73°
54°
22
74°
53°
23
80°
54°
24
79°
55°
25
80°
47°
26
79°
44°
27
74°
46°
28
69°
45°
29
70°
45°
30
70°
51°
1
70°
52°
2
Hist. Avg.
69°
44°
3
Hist. Avg.
69°
44°
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 69° to 84°, with overnight lows between 44° and 60°. The average high for September is 78° with an average low of 53°. 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.
