S
M
T
W
T
F
S
30
76°
58°
31
74°
53°
1
73°
51°
2
73°
50°
3
71°
50°
4
72°
49°
5
73°
51°
6
74°
57°
7
72°
55°
8
72°
56°
9
74°
55°
10
75°
51°
11
75°
56°
12
76°
56°
13
77°
57°
14
78°
54°
15
76°
48°
16
75°
48°
17
68°
54°
18
71°
55°
19
76°
54°
20
74°
49°
21
75°
44°
22
73°
43°
23
Hist. Avg.
71°
54°
24
Hist. Avg.
71°
54°
25
Hist. Avg.
70°
54°
26
Hist. Avg.
70°
53°
27
Hist. Avg.
70°
53°
28
Hist. Avg.
69°
52°
29
Hist. Avg.
69°
52°
30
Hist. Avg.
68°
52°
1
Hist. Avg.
68°
51°
2
Hist. Avg.
68°
51°
3
Hist. Avg.
67°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Summit Township
Summit Township's September 2026 forecast shows daily high temperatures ranging from 68° to 78°, with overnight lows between 43° and 58°. The average high for September is 74° with an average low of 52°. 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 Summit Township. See also: October | November | December.
