S
M
T
W
T
F
S
30
97°
69°
31
98°
75°
1
96°
74°
2
99°
76°
3
99°
76°
4
100°
75°
5
101°
75°
6
103°
75°
7
97°
73°
8
101°
73°
9
97°
70°
10
97°
74°
11
96°
71°
12
96°
73°
13
97°
75°
14
95°
76°
15
94°
75°
16
90°
72°
17
90°
70°
18
90°
69°
19
92°
67°
20
87°
66°
21
86°
65°
22
90°
70°
23
90°
69°
24
89°
69°
25
90°
70°
26
89°
69°
27
88°
68°
28
88°
69°
29
87°
69°
30
88°
68°
1
86°
62°
2
78°
59°
3
76°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Moorhead
Moorhead's September 2026 forecast shows daily high temperatures ranging from 76° to 101°, with overnight lows between 57° and 76°. The average high for September is 90° with an average low of 69°. 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 Moorhead. See also: October | November | December.