S
M
T
W
T
F
S
26
85°
56°
27
84°
64°
28
82°
67°
29
81°
67°
30
81°
68°
31
89°
65°
1
87°
65°
2
86°
73°
3
87°
72°
4
88°
62°
5
84°
68°
6
91°
74°
7
91°
71°
8
85°
70°
9
87°
66°
10
90°
70°
11
86°
69°
12
81°
64°
13
83°
63°
14
81°
64°
15
80°
63°
16
81°
61°
17
79°
60°
18
77°
61°
19
78°
60°
20
78°
59°
21
77°
61°
22
83°
65°
23
85°
66°
24
78°
59°
25
80°
62°
26
83°
63°
27
84°
65°
28
85°
64°
29
84°
60°
30
77°
57°
31
76°
60°
1
77°
63°
2
76°
61°
3
78°
61°
4
79°
63°
5
82°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Exton
Exton's August 2026 forecast shows daily high temperatures ranging from 76° to 90°, with overnight lows between 57° and 70°. The average high for August is 81° 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 Exton. See also: September | October | November.