S
M
T
W
T
F
S
30
90°
66°
31
90°
66°
1
89°
65°
2
87°
64°
3
82°
64°
4
82°
63°
5
86°
64°
6
88°
64°
7
88°
63°
8
85°
64°
9
85°
63°
10
86°
63°
11
86°
62°
12
87°
62°
13
86°
63°
14
89°
61°
15
88°
61°
16
88°
60°
17
89°
61°
18
88°
59°
19
87°
55°
20
80°
60°
21
85°
60°
22
86°
58°
23
87°
57°
24
82°
56°
25
78°
54°
26
77°
53°
27
78°
53°
28
79°
51°
29
79°
54°
30
82°
56°
1
84°
58°
2
86°
57°
3
85°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fort Davis
Fort Davis's September 2026 forecast shows daily high temperatures ranging from 77° to 90°, with overnight lows between 51° and 66°. The average high for September is 85° with an average low of 60°. 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 Fort Davis. See also: October | November | December.