S
M
T
W
T
F
S
30
94°
67°
31
93°
67°
1
94°
68°
2
94°
68°
3
93°
71°
4
95°
71°
5
95°
70°
6
94°
69°
7
93°
69°
8
92°
68°
9
93°
70°
10
93°
70°
11
92°
68°
12
92°
68°
13
91°
66°
14
87°
66°
15
85°
65°
16
84°
66°
17
89°
66°
18
90°
57°
19
90°
58°
20
81°
60°
21
82°
64°
22
86°
64°
23
89°
65°
24
88°
64°
25
89°
66°
26
90°
65°
27
90°
65°
28
89°
60°
29
87°
62°
30
88°
63°
1
88°
63°
2
89°
63°
3
Hist. Avg.
85°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in San Angelo
San Angelo's September 2026 forecast shows daily high temperatures ranging from 81° to 95°, with overnight lows between 57° and 71°. The average high for September is 90° with an average low of 66°. 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 San Angelo. See also: October | November | December.
