S
M
T
W
T
F
S
30
96°
69°
31
92°
64°
1
89°
61°
2
89°
59°
3
85°
59°
4
87°
58°
5
94°
58°
6
76°
65°
7
85°
71°
8
97°
76°
9
104°
82°
10
102°
79°
11
100°
75°
12
96°
70°
13
94°
63°
14
90°
62°
15
87°
61°
16
82°
62°
17
83°
62°
18
84°
59°
19
89°
59°
20
88°
61°
21
81°
63°
22
87°
54°
23
96°
57°
24
96°
62°
25
96°
59°
26
96°
59°
27
92°
60°
28
87°
59°
29
99°
60°
30
97°
61°
1
98°
62°
2
86°
58°
3
86°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Canyon Lake
Canyon Lake's September 2026 forecast shows daily high temperatures ranging from 86° to 99°, with overnight lows between 54° and 62°. The average high for September is 93° 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 Canyon Lake. See also: October | November | December.
