S
M
T
W
T
F
S
30
91°
70°
31
88°
69°
1
86°
70°
2
87°
70°
3
89°
69°
4
88°
70°
5
89°
68°
6
90°
69°
7
88°
69°
8
89°
68°
9
89°
69°
10
88°
69°
11
90°
68°
12
89°
69°
13
88°
68°
14
87°
68°
15
88°
67°
16
88°
67°
17
87°
66°
18
86°
67°
19
87°
66°
20
83°
67°
21
85°
62°
22
86°
62°
23
85°
61°
24
82°
60°
25
84°
64°
26
85°
59°
27
84°
63°
28
87°
63°
29
88°
62°
30
87°
62°
1
88°
60°
2
87°
61°
3
86°
61°
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 82° to 91°, with overnight lows between 59° and 70°. The average high for September is 87° 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.
