S
M
T
W
T
F
S
30
96°
74°
31
95°
73°
1
94°
72°
2
94°
73°
3
95°
73°
4
95°
72°
5
94°
72°
6
94°
71°
7
93°
71°
8
94°
70°
9
94°
72°
10
93°
72°
11
95°
71°
12
94°
72°
13
94°
71°
14
92°
68°
15
94°
68°
16
92°
67°
17
93°
69°
18
94°
62°
19
90°
58°
20
83°
58°
21
85°
59°
22
89°
61°
23
89°
65°
24
90°
64°
25
89°
64°
26
89°
61°
27
88°
63°
28
87°
57°
29
80°
57°
30
82°
62°
1
87°
61°
2
87°
60°
3
86°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Marshall
Marshall's September 2026 forecast shows daily high temperatures ranging from 80° to 96°, with overnight lows between 57° and 74°. The average high for September is 91° with an average low of 66°. 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 Marshall. See also: October | November | December.
