S
M
T
W
T
F
S
30
90°
79°
31
89°
79°
1
88°
78°
2
87°
79°
3
87°
78°
4
86°
79°
5
86°
79°
6
85°
78°
7
84°
78°
8
87°
77°
9
88°
78°
10
87°
78°
11
85°
77°
12
86°
78°
13
88°
78°
14
88°
72°
15
87°
74°
16
82°
73°
17
83°
74°
18
85°
75°
19
87°
76°
20
87°
76°
21
83°
76°
22
82°
76°
23
85°
76°
24
82°
75°
25
81°
75°
26
84°
74°
27
84°
75°
28
85°
75°
29
85°
74°
30
84°
75°
1
85°
74°
2
84°
73°
3
83°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fort Morgan
Fort Morgan's September 2026 forecast shows daily high temperatures ranging from 81° to 90°, with overnight lows between 72° and 79°. The average high for September is 85° with an average low of 76°. 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 Fort Morgan. See also: October | November | December.
