S
M
T
W
T
F
S
26
89°
69°
27
91°
70°
28
86°
68°
29
84°
62°
30
86°
64°
31
85°
68°
1
79°
68°
2
80°
67°
3
84°
64°
4
85°
65°
5
86°
65°
6
82°
70°
7
89°
70°
8
90°
72°
9
89°
72°
10
90°
76°
11
90°
67°
12
73°
68°
13
86°
67°
14
84°
71°
15
90°
73°
16
89°
70°
17
83°
64°
18
84°
63°
19
82°
65°
20
79°
59°
21
80°
60°
22
79°
61°
23
82°
63°
24
81°
63°
25
82°
60°
26
81°
62°
27
80°
61°
28
77°
57°
29
77°
58°
30
80°
59°
31
83°
64°
1
85°
65°
2
85°
65°
3
84°
64°
4
84°
63°
5
82°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Glenns Valley
Glenns Valley's August 2026 forecast shows daily high temperatures ranging from 77° to 90°, with overnight lows between 57° and 73°. The average high for August is 82° with an average low of 63°. 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 Glenns Valley. See also: September | October | November.
