S
M
T
W
T
F
S
30
90°
66°
31
89°
65°
1
88°
64°
2
87°
62°
3
87°
65°
4
86°
60°
5
85°
62°
6
86°
63°
7
87°
64°
8
86°
63°
9
86°
64°
10
85°
63°
11
85°
63°
12
81°
62°
13
80°
61°
14
79°
62°
15
79°
62°
16
81°
60°
17
81°
58°
18
82°
57°
19
79°
59°
20
78°
54°
21
76°
53°
22
77°
53°
23
81°
54°
24
80°
58°
25
81°
59°
26
80°
58°
27
81°
57°
28
76°
52°
29
78°
50°
30
77°
55°
1
78°
55°
2
Hist. Avg.
76°
55°
3
Hist. Avg.
76°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Demorest
Demorest's September 2026 forecast shows daily high temperatures ranging from 76° to 90°, with overnight lows between 50° and 66°. The average high for September is 82° with an average low of 59°. 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 Demorest. See also: October | November | December.
