S
M
T
W
T
F
S
30
85°
66°
31
89°
66°
1
91°
65°
2
92°
66°
3
91°
66°
4
91°
67°
5
90°
68°
6
87°
66°
7
76°
58°
8
82°
56°
9
83°
62°
10
83°
66°
11
81°
64°
12
82°
60°
13
84°
60°
14
85°
61°
15
82°
60°
16
80°
58°
17
80°
58°
18
82°
57°
19
79°
55°
20
77°
52°
21
82°
57°
22
81°
56°
23
80°
56°
24
80°
55°
25
80°
56°
26
81°
56°
27
80°
55°
28
81°
56°
29
80°
55°
30
80°
54°
1
79°
54°
2
77°
50°
3
70°
44°
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 70° to 85°, with overnight lows between 44° and 66°. The average high for September is 80° with an average low of 57°. 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.
