S
M
T
W
T
F
S
30
104°
79°
31
103°
78°
1
103°
76°
2
103°
78°
3
105°
77°
4
106°
78°
5
104°
76°
6
104°
77°
7
102°
75°
8
102°
77°
9
103°
76°
10
105°
75°
11
106°
74°
12
104°
73°
13
102°
74°
14
101°
74°
15
97°
73°
16
97°
72°
17
94°
69°
18
87°
62°
19
82°
68°
20
83°
67°
21
92°
69°
22
92°
68°
23
88°
68°
24
80°
67°
25
80°
66°
26
83°
66°
27
84°
65°
28
85°
66°
29
85°
65°
30
87°
56°
1
76°
53°
2
76°
52°
3
75°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Vernon
Vernon's September 2026 forecast shows daily high temperatures ranging from 75° to 106°, with overnight lows between 51° and 77°. The average high for September is 92° with an average low of 68°. 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 Vernon. See also: October | November | December.
