S
M
T
W
T
F
S
30
80°
58°
31
72°
55°
1
72°
54°
2
71°
54°
3
73°
59°
4
78°
59°
5
80°
61°
6
78°
60°
7
78°
51°
8
78°
59°
9
76°
58°
10
81°
48°
11
75°
49°
12
72°
58°
13
77°
50°
14
78°
45°
15
72°
43°
16
65°
44°
17
66°
47°
18
67°
54°
19
70°
54°
20
73°
53°
21
73°
54°
22
75°
55°
23
75°
54°
24
76°
53°
25
77°
55°
26
77°
53°
27
75°
42°
28
74°
40°
29
60°
41°
30
61°
42°
1
62°
44°
2
63°
41°
3
63°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Washington Township
Washington Township's September 2026 forecast shows daily high temperatures ranging from 60° to 81°, with overnight lows between 40° and 61°. The average high for September is 73° with an average low of 51°. 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 Washington Township. See also: October | November | December.
