S
M
T
W
T
F
S
26
82°
62°
27
84°
64°
28
84°
63°
29
83°
64°
30
86°
65°
31
86°
65°
1
85°
64°
2
82°
62°
3
80°
58°
4
78°
60°
5
78°
59°
6
79°
58°
7
80°
63°
8
82°
62°
9
85°
64°
10
85°
64°
11
84°
63°
12
82°
63°
13
84°
64°
14
85°
62°
15
85°
64°
16
81°
64°
17
80°
63°
18
86°
64°
19
85°
63°
20
82°
57°
21
84°
54°
22
79°
54°
23
79°
56°
24
80°
57°
25
79°
55°
26
79°
61°
27
80°
55°
28
79°
54°
29
78°
54°
30
78°
53°
31
77°
52°
1
77°
53°
2
78°
54°
3
76°
55°
4
75°
53°
5
78°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Pen Argyl
Pen Argyl's August 2026 forecast shows daily high temperatures ranging from 75° to 86°, with overnight lows between 52° and 65°. The average high for August is 81° with an average low of 59°. 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 Pen Argyl. See also: September | October | November.
