S
M
T
W
T
F
S
30
65°
46°
31
63°
38°
1
61°
43°
2
68°
45°
3
70°
45°
4
70°
38°
5
60°
38°
6
58°
39°
7
61°
35°
8
57°
32°
9
56°
38°
10
55°
39°
11
59°
40°
12
61°
40°
13
62°
37°
14
60°
43°
15
65°
40°
16
64°
40°
17
65°
32°
18
55°
38°
19
55°
41°
20
64°
42°
21
60°
33°
22
56°
33°
23
55°
34°
24
51°
31°
25
51°
30°
26
53°
32°
27
52°
36°
28
53°
34°
29
57°
36°
30
59°
38°
1
56°
36°
2
61°
36°
3
57°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cynthia
Cynthia's September 2026 forecast shows daily high temperatures ranging from 51° to 70°, with overnight lows between 30° and 46°. The average high for September is 59° with an average low of 37°. 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 Cynthia. See also: October | November | December.
