S
M
T
W
T
F
S
30
76°
62°
31
73°
60°
1
73°
55°
2
75°
51°
3
75°
54°
4
87°
61°
5
76°
46°
6
76°
51°
7
84°
58°
8
80°
56°
9
67°
50°
10
68°
47°
11
65°
51°
12
66°
50°
13
65°
48°
14
66°
48°
15
66°
49°
16
65°
48°
17
63°
48°
18
68°
51°
19
69°
54°
20
67°
53°
21
61°
51°
22
64°
51°
23
67°
52°
24
67°
52°
25
68°
51°
26
67°
52°
27
66°
51°
28
62°
49°
29
61°
45°
30
64°
45°
1
62°
44°
2
55°
43°
3
54°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Wallerstein
Wallerstein's September 2026 forecast shows daily high temperatures ranging from 54° to 87°, with overnight lows between 43° and 61°. The average high for September is 67° with an average low of 50°. 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 Wallerstein. See also: October | November | December.
