S
M
T
W
T
F
S
30
84°
58°
31
82°
58°
1
81°
57°
2
83°
59°
3
83°
57°
4
81°
56°
5
80°
57°
6
81°
56°
7
81°
54°
8
75°
54°
9
79°
53°
10
78°
55°
11
79°
52°
12
68°
47°
13
65°
43°
14
66°
48°
15
67°
50°
16
77°
50°
17
70°
48°
18
76°
49°
19
77°
51°
20
77°
51°
21
76°
50°
22
78°
43°
23
74°
47°
24
74°
50°
25
73°
46°
26
75°
37°
27
71°
39°
28
65°
39°
29
69°
45°
30
67°
38°
1
60°
43°
2
60°
43°
3
64°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Valley City
Valley City's September 2026 forecast shows daily high temperatures ranging from 60° to 84°, with overnight lows between 37° and 59°. The average high for September is 74° with an average low of 49°. 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 Valley City. See also: October | November | December.
