S
M
T
W
T
F
S
26
82°
59°
27
82°
61°
28
83°
66°
29
87°
68°
30
88°
67°
31
84°
66°
1
86°
67°
2
88°
68°
3
86°
67°
4
88°
66°
5
89°
66°
6
90°
67°
7
88°
66°
8
85°
64°
9
87°
66°
10
86°
62°
11
83°
59°
12
81°
60°
13
81°
59°
14
82°
60°
15
82°
59°
16
81°
58°
17
82°
65°
18
85°
64°
19
85°
65°
20
87°
64°
21
88°
61°
22
80°
59°
23
81°
58°
24
Hist. Avg.
84°
59°
25
Hist. Avg.
84°
58°
26
Hist. Avg.
84°
58°
27
Hist. Avg.
84°
58°
28
Hist. Avg.
83°
58°
29
Hist. Avg.
83°
58°
30
Hist. Avg.
83°
57°
31
Hist. Avg.
83°
57°
1
Hist. Avg.
83°
57°
2
Hist. Avg.
83°
56°
3
Hist. Avg.
82°
56°
4
Hist. Avg.
82°
56°
5
Hist. Avg.
82°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Sunbury
Sunbury's August 2026 forecast shows daily high temperatures ranging from 80° to 90°, with overnight lows between 58° and 68°. The average high for August is 85° 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 Sunbury. See also: September | October | November.