S
M
T
W
T
F
S
30
81°
45°
31
80°
44°
1
80°
46°
2
81°
45°
3
80°
44°
4
79°
43°
5
79°
43°
6
80°
45°
7
79°
41°
8
78°
44°
9
79°
43°
10
79°
45°
11
77°
42°
12
77°
42°
13
78°
43°
14
80°
44°
15
82°
47°
16
83°
48°
17
83°
41°
18
81°
37°
19
73°
38°
20
76°
43°
21
81°
44°
22
82°
36°
23
73°
36°
24
71°
35°
25
74°
38°
26
68°
36°
27
72°
41°
28
70°
32°
29
68°
33°
30
Hist. Avg.
72°
46°
1
Hist. Avg.
72°
46°
2
Hist. Avg.
71°
45°
3
Hist. Avg.
71°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Vernon
Vernon's September 2026 forecast shows daily high temperatures ranging from 68° to 83°, with overnight lows between 32° and 48°. The average high for September is 78° with an average low of 41°. 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.
