S
M
T
W
T
F
S
30
83°
54°
31
78°
67°
1
90°
68°
2
75°
66°
3
85°
67°
4
83°
67°
5
79°
59°
6
78°
56°
7
77°
54°
8
81°
51°
9
86°
57°
10
83°
68°
11
82°
59°
12
77°
54°
13
82°
66°
14
72°
51°
15
75°
45°
16
83°
52°
17
81°
64°
18
80°
60°
19
73°
54°
20
74°
63°
21
70°
55°
22
60°
52°
23
64°
46°
24
65°
45°
25
70°
50°
26
69°
53°
27
70°
53°
28
69°
51°
29
69°
52°
30
71°
53°
1
69°
53°
2
68°
49°
3
64°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Annville
Annville's September 2026 forecast shows daily high temperatures ranging from 60° to 71°, with overnight lows between 45° and 55°. The average high for September is 68° with an average low of 51°. 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 Annville. See also: October | November | December.
