S
M
T
W
T
F
S
30
97°
69°
31
98°
73°
1
98°
75°
2
98°
76°
3
98°
77°
4
98°
73°
5
98°
72°
6
96°
73°
7
92°
72°
8
99°
69°
9
93°
70°
10
78°
66°
11
82°
63°
12
85°
64°
13
80°
62°
14
90°
71°
15
90°
68°
16
87°
67°
17
78°
63°
18
74°
57°
19
72°
50°
20
71°
52°
21
73°
53°
22
75°
53°
23
76°
55°
24
74°
43°
25
82°
61°
26
82°
60°
27
81°
60°
28
81°
59°
29
80°
59°
30
79°
56°
1
78°
52°
2
79°
58°
3
80°
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 71° to 90°, with overnight lows between 43° and 71°. The average high for September is 80° with an average low of 58°. 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.
