S
M
T
W
T
F
S
30
83°
58°
31
79°
69°
1
90°
69°
2
74°
69°
3
87°
68°
4
85°
69°
5
79°
61°
6
78°
58°
7
77°
57°
8
82°
61°
9
87°
68°
10
79°
64°
11
80°
55°
12
79°
64°
13
80°
64°
14
83°
64°
15
81°
65°
16
80°
59°
17
75°
56°
18
73°
55°
19
75°
54°
20
73°
55°
21
74°
54°
22
72°
59°
23
72°
59°
24
73°
58°
25
72°
57°
26
77°
57°
27
75°
54°
28
75°
57°
29
76°
57°
30
77°
56°
1
76°
57°
2
75°
56°
3
75°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Adamstown
Adamstown's September 2026 forecast shows daily high temperatures ranging from 72° to 87°, with overnight lows between 54° and 68°. The average high for September is 77° with an average low of 58°. 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 Adamstown. See also: October | November | December.
