S
M
T
W
T
F
S
30
78°
52°
31
74°
50°
1
72°
50°
2
72°
49°
3
71°
50°
4
72°
50°
5
70°
51°
6
71°
52°
7
71°
57°
8
72°
51°
9
70°
50°
10
71°
49°
11
70°
49°
12
69°
50°
13
70°
52°
14
69°
50°
15
70°
53°
16
69°
47°
17
70°
46°
18
70°
47°
19
68°
55°
20
74°
52°
21
67°
46°
22
66°
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 66° to 78°, with overnight lows between 43° and 57°. The average high for September is 71° 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 Summit Township. See also: October | November | December.
