S
M
T
W
T
F
S
30
81°
62°
31
84°
60°
1
79°
56°
2
79°
56°
3
78°
55°
4
78°
54°
5
79°
55°
6
79°
59°
7
80°
57°
8
78°
58°
9
78°
54°
10
79°
55°
11
81°
60°
12
82°
60°
13
83°
59°
14
83°
59°
15
82°
58°
16
81°
59°
17
82°
58°
18
81°
58°
19
80°
57°
20
78°
56°
21
80°
49°
22
75°
48°
23
72°
49°
24
Hist. Avg.
77°
52°
25
Hist. Avg.
77°
52°
26
Hist. Avg.
76°
52°
27
Hist. Avg.
76°
51°
28
Hist. Avg.
76°
51°
29
Hist. Avg.
75°
50°
30
Hist. Avg.
75°
50°
1
Hist. Avg.
74°
50°
2
Hist. Avg.
74°
49°
3
Hist. Avg.
74°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Germantown
Germantown's September 2026 forecast shows daily high temperatures ranging from 72° to 84°, with overnight lows between 48° and 62°. The average high for September is 80° with an average low of 56°. 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.
