S
M
T
W
T
F
S
26
103°
78°
27
102°
79°
28
101°
78°
29
102°
79°
30
103°
80°
31
103°
79°
1
102°
78°
2
101°
78°
3
102°
79°
4
102°
79°
5
101°
78°
6
102°
79°
7
102°
79°
8
101°
78°
9
102°
78°
10
99°
77°
11
100°
77°
12
100°
76°
13
99°
77°
14
99°
74°
15
100°
75°
16
100°
74°
17
98°
75°
18
100°
73°
19
99°
70°
20
93°
68°
21
92°
67°
22
91°
68°
23
92°
69°
24
98°
71°
25
98°
72°
26
97°
73°
27
98°
72°
28
98°
73°
29
97°
72°
30
97°
72°
31
96°
71°
1
96°
67°
2
95°
66°
3
93°
69°
4
95°
72°
5
95°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Vernon
Vernon's August 2026 forecast shows daily high temperatures ranging from 91° to 103°, with overnight lows between 66° and 80°. The average high for August is 99° with an average low of 74°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Vernon. See also: September | October | November.