S
M
T
W
T
F
S
26
84°
66°
27
85°
67°
28
86°
66°
29
85°
66°
30
85°
67°
31
86°
68°
1
89°
72°
2
90°
72°
3
91°
71°
4
90°
72°
5
90°
66°
6
87°
65°
7
83°
65°
8
84°
66°
9
85°
66°
10
84°
67°
11
86°
67°
12
87°
70°
13
88°
71°
14
89°
70°
15
89°
71°
16
90°
70°
17
90°
71°
18
88°
68°
19
87°
67°
20
82°
66°
21
83°
70°
22
83°
70°
23
84°
66°
24
86°
67°
25
85°
70°
26
87°
64°
27
87°
65°
28
84°
69°
29
82°
69°
30
88°
68°
31
86°
69°
1
87°
68°
2
87°
68°
3
86°
67°
4
86°
63°
5
85°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Penn Valley
Penn Valley's August 2026 forecast shows daily high temperatures ranging from 82° to 91°, with overnight lows between 63° and 72°. The average high for August is 86° 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 August weather will actually feel in Penn Valley. See also: September | October | November.
