S
M
T
W
T
F
S
30
82°
63°
31
79°
69°
1
84°
68°
2
72°
65°
3
88°
67°
4
85°
73°
5
80°
68°
6
78°
64°
7
80°
57°
8
81°
58°
9
88°
63°
10
87°
70°
11
80°
65°
12
81°
57°
13
85°
67°
14
75°
58°
15
78°
54°
16
86°
58°
17
87°
70°
18
82°
69°
19
71°
60°
20
71°
59°
21
70°
54°
22
64°
51°
23
66°
53°
24
60°
46°
25
62°
45°
26
65°
46°
27
65°
47°
28
63°
48°
29
64°
46°
30
67°
47°
1
65°
46°
2
68°
45°
3
63°
50°
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 71°, with overnight lows between 45° and 60°. The average high for September is 66° 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 Washington Township. See also: October | November | December.
