S
M
T
W
T
F
S
26
99°
61°
27
97°
60°
28
99°
61°
29
99°
60°
30
97°
59°
31
95°
56°
1
95°
59°
2
97°
60°
3
96°
59°
4
99°
62°
5
98°
63°
6
99°
63°
7
99°
62°
8
98°
62°
9
99°
61°
10
100°
61°
11
99°
59°
12
95°
53°
13
93°
52°
14
91°
53°
15
91°
56°
16
94°
57°
17
97°
60°
18
97°
59°
19
98°
59°
20
98°
58°
21
97°
58°
22
97°
59°
23
94°
52°
24
90°
51°
25
91°
52°
26
89°
51°
27
89°
51°
28
90°
52°
29
89°
52°
30
93°
55°
31
95°
57°
1
96°
58°
2
96°
57°
3
95°
55°
4
95°
57°
5
94°
56°
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 89° to 100°, with overnight lows between 51° and 63°. The average high for August is 95° with an average low of 57°. 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.
