S
M
T
W
T
F
S
30
82°
63°
31
87°
63°
1
88°
65°
2
86°
62°
3
85°
63°
4
85°
62°
5
76°
54°
6
72°
51°
7
77°
56°
8
76°
58°
9
76°
58°
10
77°
55°
11
72°
51°
12
74°
52°
13
75°
53°
14
77°
54°
15
79°
56°
16
79°
56°
17
78°
55°
18
80°
57°
19
79°
57°
20
78°
56°
21
78°
55°
22
77°
56°
23
79°
55°
24
78°
52°
25
70°
47°
26
71°
49°
27
72°
48°
28
74°
51°
29
75°
52°
30
75°
51°
1
74°
51°
2
75°
50°
3
75°
52°
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 70° to 88°, with overnight lows between 47° and 65°. The average high for September is 77° 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 September weather will actually feel in Sunbury. See also: October | November | December.
