S
M
T
W
T
F
S
26
82°
63°
27
85°
64°
28
75°
67°
29
74°
63°
30
79°
60°
31
84°
59°
1
84°
62°
2
77°
69°
3
81°
64°
4
83°
57°
5
85°
64°
6
83°
67°
7
84°
68°
8
84°
68°
9
85°
68°
10
80°
66°
11
78°
67°
12
80°
67°
13
81°
67°
14
84°
65°
15
84°
61°
16
77°
68°
17
84°
70°
18
82°
63°
19
81°
59°
20
68°
60°
21
77°
55°
22
78°
61°
23
74°
55°
24
71°
54°
25
74°
53°
26
79°
58°
27
78°
58°
28
75°
56°
29
78°
53°
30
77°
58°
31
76°
56°
1
77°
52°
2
73°
51°
3
72°
52°
4
74°
55°
5
71°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Pennsylvania Furnace
Pennsylvania Furnace's August 2026 forecast shows daily high temperatures ranging from 71° to 79°, with overnight lows between 51° and 61°. The average high for August is 75° with an average low of 55°. 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 Pennsylvania Furnace. See also: September | October | November.
