S
M
T
W
T
F
S
30
74°
51°
31
75°
57°
1
80°
58°
2
73°
58°
3
82°
57°
4
81°
50°
5
78°
54°
6
75°
48°
7
73°
50°
8
78°
55°
9
80°
55°
10
79°
54°
11
74°
48°
12
72°
54°
13
76°
52°
14
78°
47°
15
70°
52°
16
69°
53°
17
68°
52°
18
69°
47°
19
75°
44°
20
68°
51°
21
72°
45°
22
71°
49°
23
72°
46°
24
75°
49°
25
74°
51°
26
74°
50°
27
73°
51°
28
74°
49°
29
73°
43°
30
66°
46°
1
72°
50°
2
74°
45°
3
71°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Germantown
Germantown's September 2026 forecast shows daily high temperatures ranging from 66° to 82°, with overnight lows between 40° and 58°. The average high for September is 74° with an average low of 50°. 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 Germantown. See also: October | November | December.
