S
M
T
W
T
F
S
30
78°
64°
31
81°
68°
1
90°
69°
2
90°
72°
3
77°
66°
4
81°
64°
5
79°
57°
6
76°
54°
7
79°
51°
8
83°
55°
9
80°
68°
10
76°
57°
11
77°
47°
12
84°
56°
13
76°
52°
14
69°
44°
15
73°
58°
16
70°
59°
17
70°
56°
18
71°
52°
19
64°
55°
20
68°
55°
21
60°
51°
22
62°
49°
23
67°
48°
24
67°
45°
25
68°
46°
26
70°
49°
27
72°
49°
28
68°
49°
29
70°
52°
30
68°
51°
1
71°
50°
2
70°
45°
3
61°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Portsmouth Charter Township
Portsmouth Charter Township's September 2026 forecast shows daily high temperatures ranging from 60° to 72°, with overnight lows between 45° and 52°. The average high for September is 67° 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 Portsmouth Charter Township. See also: October | November | December.
