S
M
T
W
T
F
S
30
83°
62°
31
79°
56°
1
75°
54°
2
75°
54°
3
77°
57°
4
82°
61°
5
80°
62°
6
75°
62°
7
82°
58°
8
81°
59°
9
82°
58°
10
81°
59°
11
83°
60°
12
82°
59°
13
82°
59°
14
83°
55°
15
83°
49°
16
73°
48°
17
72°
48°
18
72°
53°
19
74°
56°
20
74°
56°
21
71°
55°
22
72°
48°
23
78°
50°
24
80°
54°
25
80°
54°
26
79°
53°
27
79°
53°
28
78°
44°
29
73°
46°
30
67°
50°
1
66°
48°
2
67°
51°
3
66°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Hacker Valley
Hacker Valley's September 2026 forecast shows daily high temperatures ranging from 66° to 83°, with overnight lows between 44° and 62°. The average high for September is 77° 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 Hacker Valley. See also: October | November | December.
