S
M
T
W
T
F
S
30
63°
42°
31
62°
46°
1
64°
47°
2
63°
41°
3
60°
43°
4
58°
43°
5
58°
42°
6
60°
46°
7
59°
47°
8
62°
46°
9
59°
41°
10
61°
48°
11
64°
47°
12
59°
47°
13
62°
46°
14
63°
47°
15
62°
47°
16
60°
49°
17
64°
49°
18
66°
43°
19
64°
43°
20
61°
45°
21
60°
48°
22
61°
43°
23
61°
47°
24
62°
44°
25
62°
43°
26
61°
43°
27
Hist. Avg.
64°
46°
28
Hist. Avg.
64°
46°
29
Hist. Avg.
64°
46°
30
Hist. Avg.
64°
46°
1
Hist. Avg.
65°
47°
2
Hist. Avg.
65°
47°
3
Hist. Avg.
65°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Sunbury
Sunbury's September 2026 forecast shows daily high temperatures ranging from 58° to 66°, with overnight lows between 41° and 49°. The average high for September is 61° with an average low of 45°. 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.
