S
M
T
W
T
F
S
30
68°
63°
31
72°
59°
1
68°
57°
2
72°
54°
3
72°
61°
4
68°
59°
5
63°
55°
6
67°
55°
7
76°
61°
8
67°
53°
9
65°
52°
10
64°
51°
11
65°
55°
12
66°
54°
13
66°
54°
14
68°
56°
15
68°
56°
16
66°
53°
17
64°
52°
18
66°
53°
19
66°
51°
20
64°
52°
21
65°
52°
22
65°
53°
23
66°
53°
24
66°
52°
25
65°
51°
26
61°
50°
27
60°
46°
28
59°
46°
29
59°
47°
30
57°
50°
1
62°
49°
2
60°
46°
3
61°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Westerhorn
Westerhorn's September 2026 forecast shows daily high temperatures ranging from 57° to 76°, with overnight lows between 46° and 61°. The average high for September is 64° with an average low of 52°. 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 Westerhorn. See also: October | November | December.
