S
M
T
W
T
F
S
30
81°
62°
31
88°
71°
1
88°
71°
2
93°
73°
3
90°
72°
4
85°
68°
5
80°
61°
6
82°
62°
7
83°
62°
8
82°
62°
9
87°
66°
10
84°
62°
11
80°
57°
12
79°
56°
13
77°
57°
14
78°
55°
15
82°
60°
16
80°
60°
17
81°
59°
18
78°
57°
19
81°
59°
20
81°
60°
21
82°
59°
22
81°
59°
23
82°
58°
24
81°
59°
25
81°
57°
26
79°
56°
27
80°
57°
28
79°
57°
29
80°
56°
30
78°
55°
1
77°
54°
2
77°
54°
3
76°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sunbury
Sunbury's September 2026 forecast shows daily high temperatures ranging from 76° to 93°, with overnight lows between 54° and 73°. The average high for September is 81° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Sunbury. See also: October | November | December.
