S
M
T
W
T
F
S
30
85°
58°
31
80°
67°
1
92°
70°
2
78°
70°
3
90°
74°
4
87°
67°
5
83°
63°
6
77°
59°
7
79°
62°
8
82°
61°
9
83°
65°
10
88°
64°
11
79°
62°
12
81°
59°
13
80°
60°
14
79°
59°
15
76°
61°
16
76°
62°
17
77°
55°
18
74°
54°
19
73°
53°
20
74°
56°
21
78°
61°
22
81°
61°
23
82°
60°
24
82°
59°
25
79°
56°
26
79°
58°
27
80°
59°
28
79°
59°
29
80°
57°
30
74°
53°
1
69°
51°
2
73°
54°
3
77°
57°
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 69° to 92°, with overnight lows between 51° and 74°. The average high for September is 79° 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 Vernon. See also: October | November | December.
