S
M
T
W
T
F
S
30
82°
59°
31
82°
55°
1
81°
52°
2
81°
55°
3
79°
57°
4
81°
61°
5
84°
55°
6
86°
57°
7
82°
63°
8
84°
57°
9
88°
59°
10
88°
59°
11
84°
59°
12
81°
57°
13
82°
57°
14
77°
63°
15
79°
61°
16
70°
61°
17
72°
57°
18
79°
55°
19
77°
54°
20
84°
52°
21
84°
53°
22
82°
54°
23
78°
55°
24
81°
55°
25
80°
52°
26
82°
55°
27
83°
54°
28
82°
53°
29
80°
51°
30
81°
52°
1
83°
49°
2
78°
46°
3
77°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Headquarters
Headquarters's September 2026 forecast shows daily high temperatures ranging from 77° to 84°, with overnight lows between 46° and 55°. The average high for September is 81° with an average low of 52°. 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 Headquarters. See also: October | November | December.
