S
M
T
W
T
F
S
30
85°
59°
31
83°
59°
1
82°
58°
2
84°
60°
3
84°
58°
4
81°
57°
5
81°
58°
6
82°
57°
7
81°
55°
8
76°
55°
9
79°
54°
10
79°
56°
11
80°
54°
12
70°
51°
13
66°
46°
14
65°
49°
15
66°
52°
16
76°
51°
17
66°
47°
18
75°
50°
19
76°
52°
20
76°
52°
21
77°
51°
22
78°
43°
23
73°
48°
24
73°
50°
25
72°
48°
26
75°
39°
27
71°
40°
28
65°
43°
29
69°
47°
30
67°
42°
1
63°
46°
2
59°
47°
3
70°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Wishek
Wishek's September 2026 forecast shows daily high temperatures ranging from 59° to 85°, with overnight lows between 39° and 60°. The average high for September is 74° with an average low of 51°. 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 Wishek. See also: October | November | December.
