S
M
T
W
T
F
S
30
92°
69°
31
95°
67°
1
89°
67°
2
90°
66°
3
89°
66°
4
89°
67°
5
90°
65°
6
89°
66°
7
89°
69°
8
91°
69°
9
93°
70°
10
92°
68°
11
92°
68°
12
91°
67°
13
91°
66°
14
92°
67°
15
92°
67°
16
84°
61°
17
89°
60°
18
84°
65°
19
Hist. Avg.
87°
62°
20
Hist. Avg.
86°
62°
21
Hist. Avg.
86°
61°
22
Hist. Avg.
86°
61°
23
Hist. Avg.
86°
61°
24
Hist. Avg.
85°
60°
25
Hist. Avg.
85°
60°
26
Hist. Avg.
85°
60°
27
Hist. Avg.
84°
59°
28
Hist. Avg.
84°
59°
29
Hist. Avg.
84°
59°
30
Hist. Avg.
84°
58°
1
Hist. Avg.
83°
58°
2
Hist. Avg.
83°
58°
3
Hist. Avg.
83°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Stonewall
Stonewall's September 2026 forecast shows daily high temperatures ranging from 84° to 95°, with overnight lows between 60° and 70°. The average high for September is 90° with an average low of 67°. 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 Stonewall. See also: October | November | December.