S
M
T
W
T
F
S
30
87°
64°
31
88°
63°
1
85°
63°
2
84°
62°
3
80°
59°
4
80°
57°
5
81°
62°
6
84°
63°
7
85°
61°
8
84°
60°
9
83°
62°
10
84°
61°
11
79°
55°
12
77°
55°
13
77°
60°
14
81°
60°
15
79°
59°
16
81°
59°
17
80°
58°
18
81°
58°
19
78°
52°
20
74°
50°
21
74°
51°
22
75°
53°
23
78°
56°
24
79°
57°
25
80°
56°
26
79°
49°
27
74°
50°
28
72°
48°
29
71°
47°
30
72°
52°
1
72°
55°
2
Hist. Avg.
75°
49°
3
Hist. Avg.
74°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Alpha
Alpha's September 2026 forecast shows daily high temperatures ranging from 71° to 88°, with overnight lows between 47° and 64°. The average high for September is 79° with an average low of 57°. 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 Alpha. See also: October | November | December.
