S
M
T
W
T
F
S
30
94°
62°
31
92°
57°
1
89°
51°
2
81°
54°
3
89°
61°
4
92°
56°
5
90°
49°
6
79°
47°
7
76°
48°
8
75°
55°
9
75°
50°
10
76°
55°
11
78°
44°
12
75°
51°
13
77°
56°
14
82°
50°
15
74°
49°
16
72°
46°
17
73°
45°
18
74°
47°
19
81°
48°
20
83°
49°
21
82°
44°
22
73°
40°
23
69°
43°
24
71°
50°
25
75°
43°
26
69°
42°
27
69°
43°
28
70°
46°
29
70°
45°
30
67°
43°
1
67°
44°
2
71°
46°
3
74°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Alderdale
Alderdale's September 2026 forecast shows daily high temperatures ranging from 67° to 94°, with overnight lows between 40° and 62°. The average high for September is 77° with an average low of 49°. 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 Alderdale. See also: October | November | December.
