S
M
T
W
T
F
S
30
73°
56°
31
77°
61°
1
85°
63°
2
83°
63°
3
80°
63°
4
76°
64°
5
73°
53°
6
72°
47°
7
72°
42°
8
77°
45°
9
81°
54°
10
77°
60°
11
72°
49°
12
70°
48°
13
79°
59°
14
65°
42°
15
72°
39°
16
78°
57°
17
74°
64°
18
71°
55°
19
64°
52°
20
64°
53°
21
61°
49°
22
59°
48°
23
63°
38°
24
65°
38°
25
63°
43°
26
66°
46°
27
65°
46°
28
63°
47°
29
70°
49°
30
70°
53°
1
68°
51°
2
67°
49°
3
68°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Marshburg
Marshburg's September 2026 forecast shows daily high temperatures ranging from 63° to 70°, with overnight lows between 38° and 53°. The average high for September is 66° with an average low of 46°. 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 Marshburg. See also: October | November | December.