S
M
T
W
T
F
S
30
79°
54°
31
79°
56°
1
78°
56°
2
79°
55°
3
78°
47°
4
71°
45°
5
70°
49°
6
72°
55°
7
77°
55°
8
77°
54°
9
73°
47°
10
72°
53°
11
75°
52°
12
75°
54°
13
76°
54°
14
75°
53°
15
76°
52°
16
75°
51°
17
70°
50°
18
74°
44°
19
66°
43°
20
66°
42°
21
63°
40°
22
64°
49°
23
65°
45°
24
64°
41°
25
62°
40°
26
63°
47°
27
69°
48°
28
70°
47°
29
69°
46°
30
68°
45°
1
61°
46°
2
67°
39°
3
61°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Foster Township
Foster Township's September 2026 forecast shows daily high temperatures ranging from 61° to 79°, with overnight lows between 39° and 56°. The average high for September is 71° with an average low of 49°. 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 Foster Township. See also: October | November | December.
