S
M
T
W
T
F
S
30
81°
62°
31
80°
63°
1
81°
63°
2
80°
62°
3
81°
62°
4
81°
56°
5
78°
53°
6
80°
54°
7
84°
56°
8
84°
59°
9
85°
59°
10
83°
57°
11
76°
52°
12
78°
53°
13
83°
54°
14
82°
50°
15
75°
50°
16
74°
48°
17
75°
49°
18
76°
51°
19
81°
53°
20
78°
51°
21
82°
56°
22
82°
57°
23
81°
55°
24
80°
54°
25
80°
54°
26
79°
55°
27
80°
54°
28
78°
53°
29
81°
53°
30
79°
52°
1
79°
53°
2
80°
51°
3
80°
43°
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 74° to 85°, with overnight lows between 43° and 63°. The average high for September is 80° with an average low of 54°. 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.
