S
M
T
W
T
F
S
30
95°
64°
31
92°
66°
1
95°
66°
2
95°
65°
3
94°
64°
4
92°
60°
5
90°
59°
6
88°
60°
7
87°
58°
8
86°
59°
9
86°
59°
10
88°
61°
11
88°
62°
12
90°
62°
13
92°
61°
14
91°
59°
15
88°
58°
16
86°
62°
17
86°
64°
18
90°
64°
19
89°
63°
20
91°
64°
21
92°
63°
22
86°
62°
23
86°
57°
24
85°
56°
25
84°
55°
26
82°
57°
27
82°
59°
28
84°
56°
29
83°
58°
30
83°
55°
1
Hist. Avg.
82°
64°
2
Hist. Avg.
82°
64°
3
Hist. Avg.
82°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Charter Oak
Charter Oak's September 2026 forecast shows daily high temperatures ranging from 82° to 95°, with overnight lows between 55° and 66°. The average high for September is 88° with an average low of 61°. 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 Charter Oak. See also: October | November | December.
