S
M
T
W
T
F
S
30
94°
71°
31
93°
72°
1
97°
72°
2
98°
71°
3
98°
74°
4
96°
73°
5
84°
71°
6
98°
72°
7
99°
71°
8
92°
73°
9
94°
71°
10
95°
71°
11
84°
73°
12
93°
71°
13
95°
68°
14
98°
71°
15
99°
68°
16
94°
72°
17
94°
67°
18
98°
64°
19
100°
69°
20
95°
69°
21
93°
69°
22
95°
69°
23
91°
69°
24
85°
60°
25
83°
57°
26
86°
59°
27
85°
61°
28
85°
64°
29
87°
67°
30
83°
65°
1
82°
63°
2
84°
60°
3
83°
65°
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 57° and 69°. The average high for September is 85° with an average low of 63°. 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.
